No. It is probably damaged in storage and cannot be drunk. Drinking wine can prevent hardening of blood vessels, prevent cardiovascular and cerebrovascular diseases, aid digestion, and is also good for beauty. Wash the grapes and dry them. Scratch it, knead it together with white sugar or rock sugar, and then put it into a glass bottle. A week in summer is enough. In autumn, it takes about ten days and a half. After opening, put it in a bottle and put it in the refrigerator. In order to prevent deterioration, you can add some white wine. The amount of vinegar and vinegar can be controlled according to personal preferences, so that the storage time can be longer.