2. Peel the grapes one by one, don't spoil them, add salt and flour, and soak them in water 15 minutes.
3. Drain the washed grapes.
4. Prepare the glass jar in advance, wash it with warm water and put the grapes into the jar.
5, rock sugar is ready.
6. Put the grapes and add rock sugar.
7, put the rock sugar, so it's done.
8. Add a plastic wrap to the bottle cover.
9. Cover the lid and tighten the lid. The wine is ready.