To make wine through grape fermentation, you need to prepare grapes, wide-mouthed glassware, icing sugar, plastic wrap, gauze. Specific steps are as follows:

1, prepare 4 pounds of giant large grapes, put in a basin to soak for 2 hours, do not wash off the surface of the grapes of the white stuff, that is a natural fermentation agent.

2. After two hours, spread the grapes on a clean cloth and let them dry naturally.

3. Prepare a wide-mouthed glass vessel and icing sugar, and crush the grapes one by one.

4, put a layer of grapes, put a layer of icing sugar, and so on.

5. Leave some space in the mouth of the bottle, if it is too full, there is no place to release the gas produced by the grapes during the fermentation process.

6, with plastic wrap to seal the mouth of the bottle, cover the lid, placed in a cool place for 20 days, and then filtered off the grape pomace, then brewing ten days can be.

7, the grape juice and grape pomace all poured into a clean basin, wide mouth glassware covered with gauze, and then filtered.

8, slowly filter until all filtered.

9, the last filtered grape juice, placed ten days and then filtered again.

10, the last filtration can be drunk, the wine is brewed.

Expanded Information:

Seven Components of Wine

The composition of red wine is quite complex, it is a fruit wine made by natural fermentation, it contains the most is the grape juice, accounting for more than 80%, followed by the natural fermentation of the sugar inside the grapes from the alcohol, generally in 10-13%, the remaining substances more than 1,000 kinds of more important more than 300 kinds of substances. Other important components of red wine are wine acids, fruitiness, minerals and tannins. Although these substances do not account for a high percentage, they are decisive factors in the quality of wine. The quality and taste of red wines are beautiful because they can present a balance of organization and structure, so that people have endless enjoyment on the palate.

Wine is not only a solution of water and alcohol, it has a rich connotation:

1, 80% water. This is pure water in the biological sense, drawn directly from the soil by the vine.

2. 9.5-15% ethanol, the main alcohol. Produced by fermenting sugar, it is slightly sweet and gives the wine an aromatic flavor.

3. Acids. Some come from grapes, such as tartaric, malic and citric acids; some are produced by alcoholic and lactic fermentation, such as lactic and acetic acids. These major acids play an important role in the wine's acidic flavor and balanced taste.

4, phenolic compounds. 1~5g per liter, they are mainly natural red pigments as well as tannins, which determine the color and structure of red wine.

5, 0.2~5g of sugar per liter. Different types of wine contain different amounts of sugar.

6. Aromatic substances (hundreds of milligrams per liter), which are volatile and come in many varieties.

7. Amino acids, proteins and vitamins (C, B1, B2, B12, PP), which influence the nutritional value of wine.

So, drinking wine in moderation is good for human health, can protect blood vessels, prevent atherosclerosis, lower cholesterol.

Baidu Encyclopedia: Wine