What is the white frost on the grape skin? What is the nutritional value of red grapes?

The flesh, skin, and even core of grapes are rich in nutrients, and the whole body is a treasure. However, unlike spitting out the skin when eating grapes, many people do not spit out the seeds when eating red grapes. So, can the seeds of red grapes be eaten? Let's find out together. Warm reminder: Be sure to eat in moderation!

Contents of this article

1. What is the white frost on the grape skin?

2. What are the nutritional values ​​of red grapes?

3. Can the seeds of red grapes be eaten?

What is the white frost on the grape skin?

When buying grapes and other fruits, you will find white "frost" on the skin of the fruit. Many consumers have a special liking for "white frost" because they think that fruits with "frost" are fresh. But experts point out that some white spots may be residues of chemicals.

Experts from the Agricultural Technology Station and the Specialty Products Station pointed out that the "white frost" on the grape skin is fake. Normal "white frost" can indeed show that the grapes are fresh, but some spots are residues of chemicals. Experts pointed out that the normal "white frost" is naturally evenly distributed and does not cover the color of the grape skin itself. If it is the "white frost" of chemicals, the appearance will be unevenly distributed, and there will be some dark blue traces.

When you buy fruit, you will see a layer of white frost on the surface of grapes. If you look closely, you will also see a layer of white frost on plums, prunes and blueberries. When you wash apples, you will feel that they are slippery. These are actually fruit powders, which are sugar alcohols secreted by the fruit itself. They are insoluble in water and harmless to human health. In addition, the white frost on grapes contains oleanolic acid, which is beneficial for protecting the liver. There is no need to wash it off.

The white frost on grapes is different from the yeast that can ferment wine as circulated on the Internet. Normal "white frost" is fruit powder, which is natural and uniform. If you want to choose fresh grapes, you can first check whether there is even fruit powder on the grapes. Fruit powder is not pesticides, pesticides will not be so uniform, and pesticides will wash away some fruit powder, and there will be some dark blue traces. The uniform fruit powder on the grapes can also indicate that no pesticides have been sprayed on the fruit in the past.

What is the nutritional value of red grapes

Grapes contain rich nutrients in their flesh, peel, and even core. They are a treasure from head to toe. They contain more than 17% glucose and fructose, 0.5%-1.5% malic acid, tartaric acid, citric acid, etc. They also contain 0.15%-0.9% protein and abundant trace elements necessary for the human body, such as potassium, calcium, sodium, and manganese, as well as a variety of vitamins and amino acids.

Can red grape seeds be eaten?

The seeds of red grapes are edible.

Red grapes are a type of grape. The whole fruit is edible, so the seeds of red grapes are edible. However, just like you spit out the grape skins when eating grapes, many people remove the seeds when eating red grapes. In fact, consuming a small amount of red grape seeds is good for the body.