First, rinse off the impurities attached to the surface of the grape with water.
Put the grapes in the container, add a teaspoon of salt, two tablespoons of flour
Add water, gently stir by hand, stir the grapes in a circular motion, then let stand for 1.2 minutes.
Remove and rinse with water to remove the water and dry it.
1. Flour has a certain viscosity, which can absorb impurities and dirt on the grapes. Add some salt and have a bactericidal effect. 2. Don't ignore it, the grapes must be cut off, not pulled. 3. Some people will ask, don't cut the grapes, can't the whole string wash? 4. It is not recommended to wash the whole string. Generally, the fruits of the grapes are particularly compact, and they are tight enough to be tightly ventilated. If the whole string is cleaned, it will inevitably have a dead zone where it cannot be cleaned.