Red wine spoils when it is exposed to oxygen. Oxygen turns the white wine into vinegar. If it is not saved properly, the white wine will also spoil. https://howtomakewinefromgrapes.com/ try this site Wine must be kept in a cool, dark location. reference Winemaking is the production of wine, starting with the choice of the grape varieties, the grape squashing and pressing, the fermentation, aging, and also bottling.
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