What is the white frost on the grape skin

April 6, 2023
Careful people will find a layer of white frost on the grape skin, so what is this layer of white frost, can you eat, how to remove this layer of white frost? Take a look at the answers below.

What is the white frost on the grape skin

In fact, careful people will find not only a layer of white frost on the grape skin, like plums, blueberries and other fruits also have a similar layer of white frost, this white frost is a fruit and vegetable secretion of their own sugar alcohol substances, belonging to the biosynthesis of natural substances, also known as fruit powder, and there is a white frost grapes are fresh oh.

The role of white frost

The white frost on the grape skin protects the grapes, because this natural synthetic substance is insoluble in water, and it acts as a film to protect the grapes, reducing the evaporation of water and preventing the infestation of pathogenic bacteria. In addition, the white frost also contains yeast, which plays a key role in homemade wine.

Is white frosting harmful?

The white frost is a natural substance secreted by the fruits and vegetables themselves and is not harmful to the human body, so there is no need to remove the white frost when eating grapes.

How to distinguish between real and fake white frosting

It is worth noting that some unscrupulous vendors spray a layer of chemicals similar to white frost on the surface of the grapes in order to make them look fresh, so pay special attention when selecting grapes, the natural secretion of white frost is evenly distributed and can see the color of the grapes themselves, while the artificially created white frost is not evenly distributed and looks thicker, in addition, if you feel that the grapes are not fresh, it is more reassuring The practice is to simply not eat the grape skin.

How to get rid of white frost

Although the white frost is a natural substance that is not harmful to the human body, people are still worried about the residual pesticide sprayed by the farmers on the skin, as the white frost is insoluble in water, so when you put the grapes in the container with a small spoon of salt and two spoons of flour, add water while slowly stirring, and then leave it for a few minutes and then rinse with water several times to see the clean grapes.
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