阅读说明：本技术 加强型甜型吐鲁番葡萄酒及其制备方法 (Enhanced sweet Turpan grape wine and preparation method thereof ) 是由 李天翀 刘丽媛 王婷 于 2020-12-31 设计创作，主要内容包括：本发明涉及甜葡萄酒酿酒技术领域,是一种加强型甜型吐鲁番葡萄酒及其制备方法,该加强型甜型吐鲁番葡萄酒按下述制备方法得到：第一步,制备葡萄汁,使用无核白葡萄破碎后制得果肉果汁混合物并输入发酵罐中,所述发酵罐内设有筛网,筛网下方的发酵罐上设有带有阀门的出液口,通过所述出液口取出混合物中的葡萄汁。本发明釆用同一品种、同一批次的葡萄原料,不添加香精香料,经葡萄汁的制备、葡萄酒的发酵、以及葡萄蒸馏酒的制备后精心调配而成,具有浓郁香气,入口柔滑、平衡,丰满圆润,余味悠长,回味无穷,能够显著体现无核白葡萄品种的典型性及地域风土特色,显著区别于其它同类产品,是一种高端、高品质、天然的葡萄利口酒。(The invention relates to the technical field of brewing of sweet wine, in particular to an enhanced sweet Turpan wine and a preparation method thereof, wherein the enhanced sweet Turpan wine is prepared by the following preparation method: firstly, preparing grape juice, crushing seedless white grapes to prepare a pulp and juice mixture, inputting the pulp and juice mixture into a fermentation tank, arranging a screen mesh in the fermentation tank, arranging a liquid outlet with a valve on the fermentation tank below the screen mesh, and taking out the grape juice in the mixture through the liquid outlet. The grape wine is prepared by carefully blending grape juice, grape wine fermentation and grape distilled wine preparation, has strong aroma, is smooth and balanced in entrance, is full and mellow, has long aftertaste and endless aftertaste, can obviously embody the typicality and regional wind and soil characteristics of seedless white grape varieties, is obviously different from other similar products, and is high-end, high-quality and natural grape liqueur.)

1. An enhanced sweet Turpan grape wine is characterized by being obtained by the following method: firstly, preparing grape juice, namely crushing seedless white grapes to prepare a pulp and juice mixture, inputting the pulp and juice mixture into a fermentation tank, wherein a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice output volume in the mixture is taken out through the liquid outlet, and the grape juice automatically flows out without applying other external force except gravity; secondly, preparing fermented wine, namely fermenting the residual mixture in the fermentation tank in the first step until the specific gravity of the fermentation liquor is reduced to 0.990-0.994, and taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, wherein the fermented wine automatically flows out without applying other external forces except gravity; step three, preparing distilled liquor, squeezing the mixture with the peel residue and the residual fermentation liquor in the fermentation tank in the step two to prepare squeezed liquor, and distilling and purifying the squeezed liquor to prepare the distilled liquor with the alcoholic strength of 65-75% vol; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.0-4.5: 5.0 to 6.5: 1.5 to 2.0, and preparing a blended wine liquid, wherein the alcoholic strength of the blended wine liquid is 16 to 20 vol percent, and the total sugar content is 60 to 100 grams per liter; and fifthly, ageing the blended wine liquid obtained in the fourth step, wherein during ageing, a tank body needs to be filled with carbon dioxide, and then the mixed wine liquid is subjected to clarification, inspection, filtration and filling.

2. The enhanced sweet Turpan wine of claim 1, wherein said first step comprises the steps of:

step A, adopting seedless white grapes of the same variety and the same batch as raw materials, and picking when the sugar content of the seedless white grapes reaches 220-260 g per liter;

b, sorting the picked seedless white grapes, conveying the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains only by crushing the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, conveying the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture conveyed into the fermentation tank is 75-85% of the volume of the fermentation tank;

and step C, opening a valve of the liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice, and cooling to-2 ℃ to 0 ℃ for later use.

3. The enhanced sweet Turpan wine of claim 1 or 2, wherein the second step comprises the steps of:

d, adding yeast subjected to propagation culture into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, and fermenting at the fermentation temperature of 18-22 ℃;

step E, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor every day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the fact that the detected sugar content and the alcohol content parameters are in inverse proportion, if so, judging that the fermentation is normal, otherwise, judging that the fermentation is polluted by mixed bacteria, and discarding the fermented wine according to the waste wine;

and step F, when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.990 to 0.994, opening a valve of a liquid outlet, collecting the automatically flowing fermentation liquor and storing the fermentation liquor in a fermentation liquor tank, naturally clarifying and cooling to-2 ℃ to 0 ℃ for later use.

4. The enhanced sweet Turpan wine of claim 1 or 2, wherein the third step comprises the steps of:

step G, sending the mixture with the skin residue and the residual fermentation liquid in the fermentation tank obtained in the second step into an air bag squeezer, squeezing to obtain squeezed wine, and storing the squeezed wine separately;

step H, carrying out primary distillation on the obtained pressed wine to obtain primary distillate with the alcoholic strength of 30-40 vol%;

and step I, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 65-75 vol% and storing the distilled liquor into a distilled liquor tank for later use.

5. The enhanced sweet Turpan wine of claim 1 or 2, wherein said fifth step comprises the steps of:

step J, ageing the blended wine liquid obtained in the fourth step for more than six months;

step K, clarifying the aged blended wine liquid, wherein the clarification is low-temperature freezing and clarifier matching treatment;

step L, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experiment detection and low-temperature freezing detection, the high-temperature experiment detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, and if the blended wine liquid has the sediment turbidity phenomenon, the wine body is unstable;

step M, performing stability treatment on the blended wine with unstable wine body, performing adsorption clarification on the blended wine by using bentonite if the blended wine is detected to be turbid by a high-temperature experiment, and performing freezing treatment on the blended wine if the blended wine is detected to be turbid by low-temperature freezing, controlling the freezing temperature to be between-2 and-5 ℃, and keeping for 3 to 7 days to separate out substances with low solubility in blending in a precipitation form;

and step N, filtering the blended wine with stable wine body, performing coarse filtration by using a diatomite filter, performing fine filtration by using a membrane filter with the pore diameter of 0.45 mu m, and filling.

6. A preparation method of reinforced sweet Turpan grape wine is characterized by comprising the following steps: firstly, preparing grape juice, namely crushing seedless white grapes to prepare a pulp and juice mixture, inputting the pulp and juice mixture into a fermentation tank, wherein a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice output volume in the mixture is taken out through the liquid outlet, and the grape juice automatically flows out without applying other external force except gravity; secondly, preparing fermented wine, namely fermenting the residual mixture in the fermentation tank in the first step until the specific gravity of the fermentation liquor is reduced to 0.990-0.994, and taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, wherein the fermented wine automatically flows out without applying other external forces except gravity; step three, preparing distilled liquor, squeezing the mixture with the peel residue and the residual fermentation liquor in the fermentation tank in the step two to prepare squeezed liquor, and distilling and purifying the squeezed liquor to prepare the distilled liquor with the alcoholic strength of 65-75% vol; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.0-4.5: 5.0 to 6.5: 1.5 to 2.0, and preparing a blended wine liquid, wherein the alcoholic strength of the blended wine liquid is 16 to 20 vol percent, and the total sugar content is 60 to 100 grams per liter; and fifthly, ageing the blended wine liquid obtained in the fourth step, wherein during ageing, a tank body needs to be filled with carbon dioxide, and then the mixed wine liquid is subjected to clarification, inspection, filtration and filling.

7. The method of making enhanced sweet Turpan wine of claim 6, wherein said first step comprises the steps of:

step A, adopting seedless white grapes of the same variety and the same batch as raw materials, and picking when the sugar content of the seedless white grapes reaches 220-260 g per liter;

b, sorting the picked seedless white grapes, conveying the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains only by crushing the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, conveying the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture conveyed into the fermentation tank is 75-85% of the volume of the fermentation tank;

and step C, opening a valve of the liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice, and cooling to-2 ℃ to 0 ℃ for later use.

8. The method of making enhanced sweet Turpan wine as claimed in claim 6 or 7, wherein said second step comprises the steps of:

d, adding yeast subjected to propagation culture into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, and fermenting at the fermentation temperature of 18-22 ℃;

step E, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor every day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the fact that the detected sugar content and the alcohol content parameters are in inverse proportion, if so, judging that the fermentation is normal, otherwise, judging that the fermentation is polluted by mixed bacteria, and discarding the fermented wine according to the waste wine;

and step F, when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.990 to 0.994, opening a valve of a liquid outlet, collecting the automatically flowing fermentation liquor and storing the fermentation liquor in a fermentation liquor tank, naturally clarifying and cooling to-2 ℃ to 0 ℃ for later use.

9. The method of making enhanced sweet Turpan wine as claimed in claim 6 or 7, wherein said third step comprises the steps of:

step G, sending the mixture with the skin residue and the residual fermentation liquid in the fermentation tank obtained in the second step into an air bag squeezer, squeezing to obtain squeezed wine, and storing the squeezed wine separately;

step H, carrying out primary distillation on the obtained pressed wine to obtain primary distillate with the alcoholic strength of 30-40 vol%;

and step I, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 65-75 vol% and storing the distilled liquor into a distilled liquor tank for later use.

10. The method of making enhanced sweet Turpan wine as claimed in claim 6 or 7, wherein said fifth step comprises the steps of:

step J, ageing the blended wine liquid obtained in the fourth step for more than six months;

step K, clarifying the aged blended wine liquid, wherein the clarification is low-temperature freezing and clarifier matching treatment;

step L, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experiment detection and low-temperature freezing detection, the high-temperature experiment detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, and if the blended wine liquid has the sediment turbidity phenomenon, the wine body is unstable;

step M, performing stability treatment on the blended wine with unstable wine body, performing adsorption clarification on the blended wine by using bentonite if the blended wine is detected to be turbid by a high-temperature experiment, and performing freezing treatment on the blended wine if the blended wine is detected to be turbid by low-temperature freezing, controlling the freezing temperature to be between-2 and-5 ℃, and keeping for 3 to 7 days to separate out substances with low solubility in blending in a precipitation form;

and step N, filtering the blended wine with stable wine body, performing coarse filtration by using a diatomite filter, performing fine filtration by using a membrane filter with the pore diameter of 0.45 mu m, and filling.

Technical Field

The invention relates to the technical field of brewing of sweet wine, in particular to an enhanced sweet Turpan wine and a preparation method thereof.

Background

The Liqueur is the translation of Liquer in English, and is made up by using neutral liquor of brandy, whisky, rum, golden wine, vodka or grape wine as base liquor, then adding fruit juice and syrup, soaking various fruits or perfume plants, and making them pass through the processes of distillation, soaking and boiling, etc., and at least containing 2.5% of sweet pulp, said sweet pulp can be sugar or honey. The liqueur is a very popular liquor in the world, has proper alcohol content and sugar content (the alcohol content is 15-24% (V/V), the sugar content is more than or equal to 50.1 g/L), has strong fragrance, comfortable and harmonious mouthfeel, has a certain health-care function, and is popular with consumers. However, the production of liqueur at present adopts the soaking method and the distillation method for directly soaking plants with alcohol. The two methods have low extraction rate of effective components in plants, and adopt artificially synthesized pigments in the processing, so that the safety and the stability of the method are controversial. The use of other various auxiliary materials also limits the improvement of the wine quality.

The grape liqueur is prepared by adding grape brandy, edible alcohol or grape alcohol, concentrated grape wine, caramel-containing grape juice, white granulated sugar and the like into grape wine (the total alcohol content of the grape wine is more than 12 v%), so that the alcohol content of the final product reaches 15.0-22.0% (volume fraction). The Turpan area in Xinjiang is positioned in a basin with north latitude of 40-43 degrees, the lowest position of the basin is lower than the altitude of-154 meters, the climate is dry, no rain exists in the whole year, the evaporation amount reaches 2600mm, the day and night temperature difference is large, the effective accumulated temperature reaches 4526 ℃, and the natural hot air resource is very rich. Due to unique regions, climates, photo-thermal water and soil conditions and the like, the sugar degree of the grapes produced in the regions can reach 260g/L in terms of glucose, and the method is particularly suitable for brewing sweet wine with local characteristics. The seedless white grapes widely planted in Turpan regions are also named as green grapes, named as Zijing-free syzygium jambos in ancient times, are emerald green, crystal, sweet but not greasy, and are beautiful in color, shape and taste, the fruits are called as 'crystal grapes' and 'green pearls' in the plain times, the clusters are conical, 27-31 cm in length, the average weight of each cluster is 216 g, the fruit size can reach 600-1000 g in the larger case, the juice yield is 50-55%, the fruit grains are oval, yellow green or green white, the average grain weight is 1g, the fruit size can reach 1.8 g in the larger case, the fruit peels are thin, seedless, the fruits are compact and crisp, sweet and delicious, and the grape-flavored white grape wine is an ideal variety for brewing grape liqu.

At present, the grape liqueur is prepared by mixing a plurality of grape varieties, and a single grape variety is not used, so that the influence of the grape variety on the grape liqueur cannot be highlighted. In fact, grape varieties are one of the important factors affecting the quality of the grape liqueur. The liqueur is very suitable for the taste of Chinese people, but the sugar degree of the main raw material grape for brewing the liqueur is difficult to meet the requirement, so that the taste, the aroma style and the sweetness of the liqueur prepared by a plurality of wineries at present are ensured by adopting a method of manually adding sugar, so that the liqueur with different main raw materials has similar styles, and the homogenization is more serious for products produced by different enterprises with the same main raw material.

Disclosure of Invention

The invention aims to provide an enhanced sweet Turpan grape wine and a preparation method thereof, overcomes the defects of the prior art, effectively solves the problems that the prior grape liqueur has serious homogenization of taste and aroma style and cannot prepare natural pure-juice grape liqueur, can prepare the pure-juice natural health-care grape liqueur with excellent quality by using seedless white grapes produced in Turpan in Xinjiang as raw materials and adopting a method with simple process and improved production efficiency.

One of the technical schemes of the invention is realized by the following measures: an enhanced sweet Turpan grape wine is obtained by the following method: firstly, preparing grape juice, namely crushing seedless white grapes to prepare a pulp and juice mixture, inputting the pulp and juice mixture into a fermentation tank, wherein a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice output volume in the mixture is taken out through the liquid outlet, and the grape juice automatically flows out without applying other external force except gravity; secondly, preparing fermented wine, namely fermenting the residual mixture in the fermentation tank in the first step until the specific gravity of the fermentation liquor is reduced to 0.990-0.994, and taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, wherein the fermented wine automatically flows out without applying other external forces except gravity; step three, preparing distilled liquor, squeezing the mixture with the peel residue and the residual fermentation liquor in the fermentation tank in the step two to prepare squeezed liquor, and distilling and purifying the squeezed liquor to prepare the distilled liquor with the alcoholic strength of 65-75% vol; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.0-4.5: 5.0 to 6.5: 1.5 to 2.0, and preparing a blended wine liquid, wherein the alcoholic strength of the blended wine liquid is 16 to 20 vol percent, and the total sugar content is 60 to 100 grams per liter; and fifthly, ageing the blended wine liquid obtained in the fourth step, wherein during ageing, a tank body needs to be filled with carbon dioxide, and then the mixed wine liquid is subjected to clarification, inspection, filtration and filling.

The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:

further, the first step includes the steps of:

step A, adopting seedless white grapes of the same variety and the same batch as raw materials, and picking when the sugar content of the seedless white grapes reaches 220-260 g per liter;

b, sorting the picked seedless white grapes, conveying the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains only by crushing the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, conveying the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture conveyed into the fermentation tank is 75-85% of the volume of the fermentation tank;

and step C, opening a valve of the liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice, and cooling to-2 ℃ to 0 ℃ for later use.

Further, the second step includes the steps of:

d, adding yeast subjected to propagation culture into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, and fermenting at the fermentation temperature of 18-22 ℃;

step E, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor every day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the fact that the detected sugar content and the alcohol content parameters are in inverse proportion, if so, judging that the fermentation is normal, otherwise, judging that the fermentation is polluted by mixed bacteria, and discarding the fermented wine according to the waste wine;

and step F, when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.990 to 0.994, opening a valve of a liquid outlet, collecting the automatically flowing fermentation liquor and storing the fermentation liquor in a fermentation liquor tank, naturally clarifying and cooling to-2 ℃ to 0 ℃ for later use.

Further, the third step includes the steps of:

step G, sending the mixture with the skin residue and the residual fermentation liquid in the fermentation tank obtained in the second step into an air bag squeezer, squeezing to obtain squeezed wine, and storing the squeezed wine separately;

step H, carrying out primary distillation on the obtained pressed wine to obtain primary distillate with the alcoholic strength of 30-40 vol%;

and step I, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 65-75 vol% and storing the distilled liquor into a distilled liquor tank for later use.

Further, the fifth step includes the steps of:

step J, ageing the blended wine liquid obtained in the fourth step for more than six months;

step K, clarifying the aged blended wine liquid, wherein the clarification is low-temperature freezing and clarifier matching treatment;

step L, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experiment detection and low-temperature freezing detection, the high-temperature experiment detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, and if the blended wine liquid has the sediment turbidity phenomenon, the wine body is unstable;

step M, performing stability treatment on the blended wine with unstable wine body, performing adsorption clarification on the blended wine by using bentonite if the blended wine is detected to be turbid by a high-temperature experiment, and performing freezing treatment on the blended wine if the blended wine is detected to be turbid by low-temperature freezing, controlling the freezing temperature to be between-2 and-5 ℃, and keeping for 3 to 7 days to separate out substances with low solubility in blending in a precipitation form;

and step N, filtering the blended wine with stable wine body, performing coarse filtration by using a diatomite filter, performing fine filtration by using a membrane filter with the pore diameter of 0.45 mu m, and filling.

The second technical scheme of the invention is realized by the following measures: a preparation method of enhanced sweet Turpan grape wine comprises the following steps: firstly, preparing grape juice, namely crushing seedless white grapes to prepare a pulp and juice mixture, inputting the pulp and juice mixture into a fermentation tank, wherein a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice output volume in the mixture is taken out through the liquid outlet, and the grape juice automatically flows out without applying other external force except gravity; secondly, preparing fermented wine, namely fermenting the residual mixture in the fermentation tank in the first step until the specific gravity of the fermentation liquor is reduced to 0.990-0.994, and taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, wherein the fermented wine automatically flows out without applying other external forces except gravity; step three, preparing distilled liquor, squeezing the mixture with the peel residue and the residual fermentation liquor in the fermentation tank in the step two to prepare squeezed liquor, and distilling and purifying the squeezed liquor to prepare the distilled liquor with the alcoholic strength of 65-75% vol; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.0-4.5: 5.0 to 6.5: 1.5 to 2.0, and preparing a blended wine liquid, wherein the alcoholic strength of the blended wine liquid is 16 to 20 vol percent, and the total sugar content is 60 to 100 grams per liter; and fifthly, ageing the blended wine liquid obtained in the fourth step, wherein during ageing, a tank body needs to be filled with carbon dioxide, and then the mixed wine liquid is subjected to clarification, inspection, filtration and filling.

The following is further optimization or/and improvement of the second technical scheme of the invention:

further, the first step includes the steps of:

step A, adopting seedless white grapes of the same variety and the same batch as raw materials, and picking when the sugar content of the seedless white grapes reaches 220-260 g per liter;

b, sorting the picked seedless white grapes, conveying the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains only by crushing the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, conveying the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture conveyed into the fermentation tank is 75-85% of the volume of the fermentation tank;

and step C, opening a valve of the liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice, and cooling to-2 ℃ to 0 ℃ for later use.

Further, the second step includes the steps of:

d, adding yeast subjected to propagation culture into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, and fermenting at the fermentation temperature of 18-22 ℃;

step E, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor every day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the fact that the detected sugar content and the alcohol content parameters are in inverse proportion, if so, judging that the fermentation is normal, otherwise, judging that the fermentation is polluted by mixed bacteria, and discarding the fermented wine according to the waste wine;

and step F, when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.990 to 0.994, opening a valve of a liquid outlet, collecting the automatically flowing fermentation liquor and storing the fermentation liquor in a fermentation liquor tank, naturally clarifying and cooling to-2 ℃ to 0 ℃ for later use.

Further, the third step includes the steps of:

step G, sending the mixture with the skin residue and the residual fermentation liquid in the fermentation tank obtained in the second step into an air bag squeezer, squeezing to obtain squeezed wine, and storing the squeezed wine separately;

step H, carrying out primary distillation on the obtained pressed wine to obtain primary distillate with the alcoholic strength of 30-40 vol%;

and step I, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 65-75 vol% and storing the distilled liquor into a distilled liquor tank for later use.

Further, the fifth step includes the steps of:

step J, ageing the blended wine liquid obtained in the fourth step for more than six months;

step K, clarifying the aged blended wine liquid, wherein the clarification is low-temperature freezing and clarifier matching treatment;

step L, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experiment detection and low-temperature freezing detection, the high-temperature experiment detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, and if the blended wine liquid has the sediment turbidity phenomenon, the wine body is unstable;

step M, performing stability treatment on the blended wine with unstable wine body, performing adsorption clarification on the blended wine by using bentonite if the blended wine is detected to be turbid by a high-temperature experiment, and performing freezing treatment on the blended wine if the blended wine is detected to be turbid by low-temperature freezing, controlling the freezing temperature to be between-2 and-5 ℃, and keeping for 3 to 7 days to separate out substances with low solubility in blending in a precipitation form;

and step N, filtering the blended wine with stable wine body, performing coarse filtration by using a diatomite filter, performing fine filtration by using a membrane filter with the pore diameter of 0.45 mu m, and filling.

The grape wine is prepared by carefully blending grape juice, grape wine fermentation and grape distilled wine preparation, has strong aroma, is smooth and balanced in entrance, is full and mellow, has long aftertaste and endless aftertaste, can obviously embody the typicality and regional wind and soil characteristics of seedless white grape varieties, is obviously different from other similar products, and is high-end, high-quality and natural grape liqueur.

Drawings

The specific preparation process of the invention is given by the following figures and examples:

FIG. 1 is a schematic flow chart of the preparation process of the invention.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.

The invention is further described below with reference to the following examples:

example 1, the enhanced sweet Turpan wine was prepared as follows: firstly, preparing grape juice, selecting seedless white grapes of the same variety and the same batch as raw materials, selecting a good grape garden, closely monitoring the grapes in a mature season, concentrating grape components by means of controlling irrigation water amount, harvesting at night and the like, picking when the sugar content of the seedless white grapes reaches 255 g/L, sorting the picked seedless white grapes, selecting and removing rotten grapes, green Chinese olive, weed branches and leaves, soil stones and the like, sending the selected seedless white grapes into a peduncle removing crusher for peduncle removing and crushing grape fruit grains, crushing the grape fruit grains only by crushing the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, sending the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture sent into the fermentation tank is 75-85% of the volume of the fermentation tank, the fermentation tank is cleaned in advance, sterilized and filled with carbon dioxide, a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, grape juice accounting for 15 to 25 percent of the volume of the total juice output in the mixture is taken out through the liquid outlet, the grape juice is automatically discharged without applying other external force except gravity, the valve of the liquid outlet is opened, the automatically discharged grape juice is collected and stored in a grape juice tank which is cleaned in advance, sterilized and filled with carbon dioxide, pectinase is added into the grape juice according to the amount of 15 to 20 grams of pectinase added into each ton of grape juice, and the temperature is reduced to minus 2 ℃ to 0 ℃ for standby; secondly, preparing fermented wine, adding yeast after propagation into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, controlling the fermentation temperature to be 18-22 ℃, fermenting, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor once a day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the inverse ratio of the measured sugar content and the alcohol content parameters, if so, judging that the fermentation is normal, if so, judging that the fermentation is polluted by mixed bacteria, if not, discarding the fermented wine, and when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.993, opening a valve at a liquid outlet, taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, the fermented wine is automatically flowed out without applying other external force except gravity, the automatically flowed-out fermented wine is collected and stored in a fermented wine tank which is cleaned in advance, sterilized and filled with CO2, naturally clarified and cooled to the temperature of-2 ℃ to 0 ℃ for later use; thirdly, preparing distilled liquor, feeding the mixture with the peel residue and the residual fermentation liquor in the fermentation tank obtained in the second step into an air bag squeezer, squeezing to obtain squeezed liquor and storing the squeezed liquor separately, carrying out primary distillation on the squeezed liquor to obtain primary distillate with the alcoholic strength of 30-40% vol, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 72% vol, and storing the distilled liquor in a distilled liquor tank for later use; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 4.5: 5.5: 1.5, preparing the blended wine, wherein the alcoholic strength of the blended wine is 15.7 vol%, and the total sugar content is 100 g/L; fifthly, ageing the blended wine liquid obtained in the fourth step for over six months, filling a tank body with carbon dioxide during ageing, clarifying the aged blended wine liquid, performing low-temperature freezing and clarifying agent matching treatment, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experimental detection and low-temperature freezing detection, the high-temperature experimental detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, if the sediment phenomenon occurs in the blended wine liquid, the wine body is unstable, and the blended wine liquid with unstable wine body is subjected to stability treatment, if the sediment turbidity is detected by a high-temperature experiment, using bentonite to adsorb and clarify the blended wine liquid, if the sediment turbidity is detected by low-temperature freezing, freezing the blended wine liquid, controlling the freezing temperature to be between 2 ℃ below zero and 5 ℃ below zero, keeping the temperature for 3 to 7 days, separating out substances with low solubility in blending in a sediment form, then filtering the blended wine liquid with stable wine body, firstly using a diatomite filter to carry out coarse filtration, then using a membrane filter with the aperture of 0.45 mu m to carry out fine filtration, and finally carrying out filling, wherein a filling machine firstly uses 5 to 10 percent caustic soda solution to clean for 15 minutes, soft water to clean for 5 minutes, 3 to 5 percent citric acid to clean for 15 minutes, and soft water to clean for 5 minutes so as to achieve the purpose of sterilization and cleaning; pumping the fine filtered wine into a filling machine for filling, constantly cleaning a filling workshop to ensure cleanness, and periodically performing ultraviolet air sterilization. The finally obtained wine has thick honey type, honey sweet fragrance and grape fruity fragrance, and is golden and transparent in color and amber. Fifthly, ageing the blended wine for more than 6 months so as to organically combine all the components in the wine; in the aging process, the wine liquid is prevented from being oxidized due to the long-time contact of the wine liquid and air, if the wine liquid can not be stored in full tank, the part which is not full tank can be filled with CO2 gas, so that the wine liquid is isolated from oxygen and is prevented from being oxidized; then the insoluble and suspended substances are separated in a precipitation form by utilizing the matching treatment of low-temperature freezing and a clarifying agent, so that the clarification stability of the wine body is achieved; when bentonite is used for adsorption clarification, the bentonite can be Erbsl Ö h brand bentonite with NaCalit PORE-TEC model produced by Epsilon Germany, and the dosage of the bentonite is 0.5ppm to 1.5 ppm. In the invention, the grape juice prepared in the first step is the grape juice which flows out automatically without external force after the grapes are crushed, and the obtained grape juice has fresh and pure fragrance, is clean and has no foreign flavor and is used for ensuring the fragrance, the taste and the sugar content of the final product; the fermented wine prepared in the second step is added with yeast for fermentation after part of grape juice is taken out in the first step, the concentration purpose is realized, more aromatic substances such as polyphenol and the like in grape skin are extracted from the finally fermented wine, no external force is added after the fermentation is finished, and the fruit aroma and the fermentation aroma of the self-flowing wine are stronger and mellow; and the third step is that after the self-flowing part of the fermented wine is taken out in the second step, the rest fermented wine and the peel and residue are squeezed and separated by a squeezer, the peel and residue are discarded, and the squeezed wine is purified into distilled wine with higher alcohol content through crude distillation and fine distillation twice, and the wine is pure and sweet in aroma. The reinforced sweet Turpan grape wine prepared by the invention selects seedless white grapes produced by Turpan planting as raw materials, the raw materials are respectively processed into grape juice, fermented wine and distilled wine according to the quality characteristics of different nodes, and the three parts are finely mixed together in proportion to form finished wine, so that the aim of producing a batch of wine by using a single grape in the same batch is well fulfilled, the special photo-thermal water and soil and natural hot air conditions of the Turpan area are fully utilized to prepare the high-quality liqueur grape wine with unique regional characteristics, the variety characteristics of the seedless white grapes and the regional wind and soil characteristics of the Turpan area can be clearly shown, and the homogenization of the product is effectively avoided.

Example 2, the enhanced sweet Turpan wine was prepared as follows: firstly, preparing grape juice, picking the same variety and batch of seedless white grapes serving as raw materials, sorting the picked seedless white grapes, feeding the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains into grape seeds, then obtaining a pulp and juice mixture, feeding the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture fed into the fermentation tank is 75-85% of the volume of the fermentation tank, a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice volume is taken out of the mixture through the liquid outlet, and the grape juice is automatically flowed out without applying other external force except gravity, opening a valve of a liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice according to the addition of 15-20 g of pectinase into each ton of grape juice, and cooling to-2 ℃ to 0 ℃ for later use; secondly, preparing fermented wine, adding yeast after propagation into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, controlling the fermentation temperature to be 18-22 ℃, fermenting, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor once a day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the inverse ratio of the measured sugar content and the alcohol content parameters, if so, judging that the fermentation is normal, if so, judging that the fermentation is polluted by mixed bacteria, if not, discarding the fermented wine, and when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.991, opening a valve at a liquid outlet, taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, the fermented wine is automatically flowed out without applying other external force except gravity, the automatically flowed out fermented wine is collected and stored in a fermented wine tank, and the fermented wine is naturally clarified and cooled to the temperature of-2 ℃ to 0 ℃ for standby; step three, preparing distilled liquor, namely feeding the mixture with the peel residue and the residual fermentation liquor in the fermentation tank obtained in the step two into an air bag squeezer, squeezing to obtain squeezed liquor and storing the squeezed liquor separately, carrying out primary distillation on the squeezed liquor to obtain primary distillate with the alcoholic strength of 30-40% vol, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 68% vol, and storing the distilled liquor in a distilled liquor tank for later use; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.5: 5.0: 1.5, preparing the blended wine, wherein the alcoholic strength of the blended wine is 17% vol, and the total sugar content is 70 grams per liter; fifthly, ageing the blended wine liquid obtained in the fourth step for over six months, filling a tank body with carbon dioxide during ageing, clarifying the aged blended wine liquid, performing low-temperature freezing and clarifying agent matching treatment, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experimental detection and low-temperature freezing detection, the high-temperature experimental detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, if the sediment phenomenon occurs in the blended wine liquid, the wine body is unstable, and the blended wine liquid with unstable wine body is subjected to stability treatment, if the sediment is detected to be turbid by a high-temperature experiment, using bentonite to adsorb and clarify the blended wine liquid, if the sediment is detected to be turbid by a low-temperature freezing method, freezing the blended wine liquid, controlling the freezing temperature to be between 2 ℃ below zero and 5 ℃ below zero, keeping for 3 to 7 days to separate out substances with low solubility in blending in a sediment form, then filtering the blended wine liquid with stable wine body, firstly using a diatomite filter to carry out coarse filtration, then using a membrane filter with the aperture of 0.45 mu m to carry out fine filtration, and finally filling. The finally obtained wine has a smooth and sweet taste and golden and transparent color.

Example 3, the enhanced sweet Turpan wine was prepared as follows: firstly, preparing grape juice, picking seedless white grapes of the same variety and in the same batch as raw materials, sorting the picked seedless white grapes, feeding the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains to crush only the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, feeding the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture fed into the fermentation tank is 75-85% of the volume of the fermentation tank, a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice volume is taken out through the liquid outlet, and the grape juice is automatically flowed out without applying other external force except gravity, opening a valve of a liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice according to the addition of 15-20 g of pectinase into each ton of grape juice, and cooling to-2 ℃ to 0 ℃ for later use; secondly, preparing fermented wine, adding yeast after propagation into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, controlling the fermentation temperature to be 18-22 ℃, fermenting, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor once a day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the inverse ratio of the measured sugar content and the alcohol content parameters, if so, judging that the fermentation is normal, if so, judging that the fermentation is polluted by mixed bacteria, if not, discarding the fermented wine, and when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.994, opening a valve at a liquid outlet, taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, the fermented wine is automatically flowed out without applying other external force except gravity, the automatically flowed out fermented wine is collected and stored in a fermented wine tank, and the fermented wine is naturally clarified and cooled to the temperature of-2 ℃ to 0 ℃ for standby; thirdly, preparing distilled liquor, feeding the mixture with the peel residue and the residual fermentation liquor in the fermentation tank obtained in the second step into an air bag squeezer, squeezing to obtain squeezed liquor and storing the squeezed liquor separately, carrying out primary distillation on the squeezed liquor to obtain primary distillate with the alcoholic strength of 30-40% vol, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 74% vol, and storing the distilled liquor in a distilled liquor tank for later use; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.0: 5.5: 1.5, preparing the blended wine, wherein the alcoholic strength of the blended wine is 18% vol, and the total sugar content is 65.5 grams per liter; fifthly, ageing the blended wine liquid obtained in the fourth step for over six months, filling a tank body with carbon dioxide during ageing, clarifying the aged blended wine liquid, performing low-temperature freezing and clarifying agent matching treatment, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experimental detection and low-temperature freezing detection, the high-temperature experimental detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, if the sediment phenomenon occurs in the blended wine liquid, the wine body is unstable, and the blended wine liquid with unstable wine body is subjected to stability treatment, if the sediment is detected to be turbid by a high-temperature experiment, using bentonite to adsorb and clarify the blended wine liquid, if the sediment is detected to be turbid by a low-temperature freezing method, freezing the blended wine liquid, controlling the freezing temperature to be between 2 ℃ below zero and 5 ℃ below zero, keeping for 3 to 7 days to separate out substances with low solubility in blending in a sediment form, then filtering the blended wine liquid with stable wine body, firstly using a diatomite filter to carry out coarse filtration, then using a membrane filter with the aperture of 0.45 mu m to carry out fine filtration, and finally filling. The finally obtained wine has sweet and refreshing taste, mellow and mellow taste and golden and transparent color.

Example 4, the enhanced sweet Turpan wine was prepared as follows: firstly, preparing grape juice, picking seedless white grapes of the same variety and in the same batch as raw materials, sorting the picked seedless white grapes, feeding the sorted seedless white grapes into a stem removing crusher to remove stems and crush grape fruit grains, crushing the grape fruit grains to crush only the grape fruit grains without crushing grape seeds to obtain a pulp and juice mixture, feeding the pulp and juice mixture into a fermentation tank through a screw pump, wherein the volume of the pulp and juice mixture fed into the fermentation tank is 75-85% of the volume of the fermentation tank, a screen is arranged in the fermentation tank, a liquid outlet with a valve is arranged on the fermentation tank below the screen, the grape juice accounting for 15-25% of the total juice volume is taken out through the liquid outlet, and the grape juice is automatically flowed out without applying other external force except gravity, opening a valve of a liquid outlet, collecting the grape juice flowing out automatically, storing the grape juice in a grape juice tank, adding pectinase into the grape juice according to the addition of 15-20 g of pectinase into each ton of grape juice, and cooling to-2 ℃ to 0 ℃ for later use; secondly, preparing fermented wine, adding yeast after propagation into the residual mixture in the fermentation tank obtained in the first step, uniformly mixing to obtain fermentation liquor, controlling the fermentation temperature to be 18-22 ℃, fermenting, controlling the fermentation rate by controlling the temperature or introducing oxygen, detecting the temperature and the specific gravity parameters of the fermentation liquor every four hours to judge the fermentation state, detecting the sugar content, the alcohol content and the total acid content parameters of the fermentation liquor once a day to judge whether the fermentation state is normal, judging whether the fermentation is normal according to the inverse ratio of the measured sugar content and the alcohol content parameters, if so, judging that the fermentation is normal, if so, judging that the fermentation is polluted by mixed bacteria, if not, discarding the fermented wine, and when the specific gravity of the fermentation liquor is reduced from 1.110 to 0.993, opening a valve at a liquid outlet, taking out the fermented wine accounting for 35-45% of the total juice volume in the fermentation liquor, the fermented wine is automatically flowed out without applying other external force except gravity, the automatically flowed out fermented wine is collected and stored in a fermented wine tank, and the fermented wine is naturally clarified and cooled to the temperature of-2 ℃ to 0 ℃ for standby; step three, preparing distilled liquor, feeding the mixture with the peel residue and the residual fermentation liquor in the fermentation tank obtained in the step two into an air bag squeezer, squeezing to obtain squeezed liquor and storing the squeezed liquor separately, carrying out primary distillation on the squeezed liquor to obtain primary distillate with the alcoholic strength of 30-40% vol, carrying out secondary distillation on the obtained primary distillate to obtain distilled liquor with the alcoholic strength of 75% vol, and storing the distilled liquor in a distilled liquor tank for later use; step four, blending, namely mixing the grape juice obtained in the step one, the fermented wine obtained in the step two and the distilled wine obtained in the step three according to the volume ratio of 3.0: 6.5: 2.0 to prepare blended wine, wherein the alcoholic strength of the blended wine is 20% vol, and the total sugar content is 60 grams per liter; fifthly, ageing the blended wine liquid obtained in the fourth step for over six months, filling a tank body with carbon dioxide during ageing, clarifying the aged blended wine liquid, performing low-temperature freezing and clarifying agent matching treatment, detecting the clarified blended wine liquid, wherein the detection comprises high-temperature experimental detection and low-temperature freezing detection, the high-temperature experimental detection is to heat the blended wine liquid to 80 ℃ and keep the temperature for 60 minutes and observe the stability of the wine body, the low-temperature freezing detection is to freeze the blended wine liquid to ice and observe the stability of the wine body, if the blended wine liquid has no sediment turbidity phenomenon, the wine body is stable and can be filtered and filled into a finished product, if the sediment phenomenon occurs in the blended wine liquid, the wine body is unstable, and the blended wine liquid with unstable wine body is subjected to stability treatment, if the sediment is detected to be turbid by a high-temperature experiment, using bentonite to adsorb and clarify the blended wine liquid, if the sediment is detected to be turbid by a low-temperature freezing method, freezing the blended wine liquid, controlling the freezing temperature to be between 2 ℃ below zero and 5 ℃ below zero, keeping for 3 to 7 days to separate out substances with low solubility in blending in a sediment form, then filtering the blended wine liquid with stable wine body, firstly using a diatomite filter to carry out coarse filtration, then using a membrane filter with the aperture of 0.45 mu m to carry out fine filtration, and finally filling. The finally obtained wine has thick and mellow mouthfeel, is sweet and fine, and is golden and transparent in color.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present invention. All obvious changes and modifications of the present invention are within the scope of the present invention.