Recently, netizens have been discussing a way to wash grapes, which is to wash grapes with flour. First, the first step is to take out the whole bunch of grapes. If they are too big, you can cut them off one by one. Then use scissors to cut off the grapes together with the small pimples at the tail, throw away the bad ones and leave the fallen ones on the other side. Next, the second step is our cleaning process. Put the grapes in a clear water basin. There is less water than the grapes. Then add 1~2 tablespoons of flour, add water and stir well. Then let it stand for 2 minutes, so that the flour can fully contact with the impurities attached between the grapes. After 2~3 minutes, rinse the grapes twice with running water.
Why can flour be used to clean grapes? In fact, the principle is simple, because the water viscosity of flour is relatively high. If the grapes are washed with flour water, the dirt on the surface of the grapes will be easily carried away by sticky flour water, so that the grapes will be much cleaner than directly washing with water.
In fact, besides washing grapes with flour, you can also wash grapes with salt water and vinegar. Because salt has a bactericidal effect, if we add a proper amount of salt to the water, we can not only remove the residual dirt and pesticides on the surface of grapes, but also sterilize them. The function of vinegar is similar to that of salt, and vinegar water can also play a role in sterilization and preservation.
Finally, there is a good way to wash grapes, which is to use toothpaste. Because there are some tiny particles in the toothpaste we usually use that can rub the grape skins. Grapes washed with toothpaste will become very clean. Don't worry about the taste of toothpaste. Rinse with clear water.