1, salt water cleaning.

Pick the grapes in the basin with water, and then put a little bit of salt appropriately, gently scrub with your hands, and finally rinse with water can be! Salt has a sterilization effect can also play a role in rubbing the surface of the grapes.

2, flour cleaning.

To mention how to wash the grapes to clean this problem, the best way is to put some flour in the water, and then soak the grapes for a few minutes, and then slightly rinse with water can be, one by one is very bright and clear, that white powdery stuff is completely gone. And this method is very safe, there will never be chemical pollution, you can rest assured to eat Oh!

3, toothpaste cleaning.

Squeeze some toothpaste on your hands, rub your hands together and gently scrub the grapes. The process of washing grapes must be fast (five minutes or less), lest the grapes absorb water and swell, easily rotten. Pour off the dirty water and rinse with clean water. Rinse with clean water until there is no foam.

3. Sift with a clean towel.

With a pan lid, pouncing on a clean towel, wet soaking grapes into which, once about a layer of grapes thickness, and can be rolled, hand hold a good pan, rocking back and forth, so that the grapes evenly rolled. So the white frost on the grapes is gone.

Based on the specific type of problem, step-by-step dismantling/cause principle analysis/content expansion.

Specific steps are as follows:/ The main cause of this situation is ......