Home-made wines can be preserved for at least a few decades if they are well preserved, and the most expensive wines in the world are hand-brewed, which can easily deteriorate if not preserved.
the reason:
1, homemade alcohol and alcohol can not meet certain requirements, high residual sugar content, easy storage and aging of wine
2, homemade wine contains bacteria, easily lead to wine deterioration
3. During the process of self-produced wine, some metal ions enter the wine, which can easily cause the wine to be destroyed.
In addition, there is another reason that can be controlled is to preserve the wine environment.
Wine can be seen as a living body. She is very delicate and has a very sensitive reflection of light, temperature, moderation, and sound. These environmental conditions are artificially controlled.
1, alcohol can not meet the requirements of high sugar content
The level of alcohol and the sugar content are dependent on two aspects. One is the level of glucose, and the other is the degree of fermentation. Alcohol does not meet certain requirements and wine is more difficult to store. Then, the way to improve is: increase the sugar, so that the fermentation proceeds to the end. This requires that the raw materials of the grapes are good and the varieties of fermented yeast are good.
2, homemade wine contains bacteria, easily lead to deterioration of wine
This is unavoidable and the solution is to add sulfur dioxide to sterilize. But it is appropriate. Add a few drops before sealing in the bottle, sulfur dioxide can be purchased in the reagent shop.
3. During the process of self-produced wine, some metal ions enter the wine, which can easily cause the wine to be destroyed.
This can be avoided, as long as care is taken to avoid contact with the metal in the brewing composition, and metal containers are sufficient.
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