1. Put the grapes one by one in the basin, and don't completely remove the stems and leave a little.

2. Add water that can cover the height of the grapes.

3. Sprinkle some flour into the water (any type of flour, which is the easiest to get in a convenience store)

4. stir in the water with your palm a few times

5. Pour out the turbid flour and dirty water, and rinse it with clear water several times until the water is clear.

It is said that flour is a good natural absorbent, which can absorb dirt and grease on the surface of fruits and vegetables. Flour water can be used to wash dishes, which is really good.

Method 2:

Put the grapes in a towel and sieve them in water, and the frost on the grapes will soon disappear.

Method 3:

Gently knead with salt, so that all the skins of the grapes are stained with salt, then soak for 20 minutes, pour off the water, add clean water, and finally rinse with cold boiled water.

The third method is more convenient.