2, pulp fermentation, fermentation is the grape skin juice of the sugar by the action of yeast to produce alcohol and carbon dioxide.
3, vat pressing, with clean with clean cloth bags or gauze, for squeezing or twisting pressure, so that the wine and skin residue separation.
4. Clarification of the lower gum, the lower gum is an operation to add clarifying agent to clarify the wine, which is related to the quality of home-made products.
5, discretionary sugar, egg whites into foam, with a small amount of wine to mix fully, and then add the wine, and then fully stir and stand, until the wine is clear and transparent, the sediment will be discarded.
6, natural aging, through the above process, the use of fresh grapes homebrew with grape fruit color and beautiful wine aroma, sweet and sour wine.
7, to summarize, this is the wine fermentation when the practice.