Grapes are a lot of friends are very favorite fruit. But some friends will feel that the skin of grapes is particularly bad to wash. Always feel that there are gray things on it. Generally speaking, the grape skin above a layer of white material to judge according to the actual situation, most of the fruit powder, the fresher the grapes above the more fruit powder, fruit powder is harmless to human beings, is the grape itself, but there are a lot of fungicides used after the injury to the fruit powder, the surface will also leave white material, that is the drug spot, pay attention to distinguish.

Fruit powder has the role of water retention, pest control and radiation, so many fungicides are used to not hurt the fruit powder as a prerequisite. But then, some people have heard that sprinkling flour to wash grapes will be cleaner. So why is this. Because ah, flour in water will become a paste small groups, agglomerated structure, the principle is very simple, first of all, the flour particles are relatively small, with a certain adsorption capacity, which is similar to activated charcoal adsorption principle.

Secondly, the main composition of the flour is starch and protein, when dissolved in water, the formation of a viscous solution system, which is also able to attach to the rind of the dirt washed down. And then recommend a good method, the same is to add something to wash, the material is a little different, toothpaste , you can do a test, the effect is also very good Oh.

And the correct order of washing grapes you can learn: the grapes one by one in the water basin, do not completely remove the tip to stay a little bit (the whole bunch put in some places or cleaning is not clean); add the height of the grapes can be over the water; sprinkle the water with some flour (just any type of flour; with the palm of your hand and stirred a few times in the water; pour off the turbid flour dirty water, rinse several times with clean water until the water is clear. clear enough.