1. Wash the grapes, blanch them with hot water and peel them.

2. Carefully peel off the skin.

3. Boil the rock sugar in water.

4. Add grapes and turn down the heat.

It takes five or six minutes for the grapes to turn milky yellow.

6. The color of mature white milk is attractive milky yellow, and the more yellow, the sweeter.

7. Put it in a canned bottle sterilized with boiling water, seal it and put it in the refrigerator. It can be stored for several days, but it is best to eat it as soon as possible without additives.