1. Wash the picked grapes first.

2. Boil a pot of boiling water and let it cool for later use.

3. Put the grapes in a glass jar and add a little rock sugar, sour vinegar and salt. If you like hot and sour, you can add some fresh peppers.

4. Put in cold boiled water, and be sure to drown the grapes.

5, sealed, usually with disposable clean chopsticks to eat, to prevent oil contact or grapes will rot.