First, the frost of vegetables is a new "synonym":

1, like human skin, some fruits (such as wax gourd) and some stems and leaves (such as onion leaves and kale) have a layer of waxy hoarfrost deposited on their surfaces, which can protect and moisturize the plant epidermis to some extent. In general, when vegetables are fresh, frost is more obvious. The frost of wax gourd is a symbol of maturity. The more frost, the better it is cooked.

2. Many ingredients such as grapes, persimmons and kelp have a layer of frost. For example, there is a layer of hoarfrost on the surface of grapes. If you look closely at plums, prunes and blueberries, you will feel greasy when washing apples. These are actually fruit powders, that is, sugar alcohols secreted by fruits themselves, which are harmless to human health. Moreover, the hoarfrost of grapes contains oleanolic acid, which is beneficial to protect the liver, and it is not necessary to wash it off.

Second, the effect of winter melon skin:

1, winter melon skin not only contains a variety of vitamins and minerals, but also contains a variety of volatile nutrients, rich in sugar, protein, vitamin C, and winter melon skin is very good for braising in soy sauce or cooking soup.

2. In Hunan Pharmacology, winter melon skin is mixed with acanthopanax bark and ginger bark and decocted; If you treat body deficiency and edema, use appropriate amount of winter melon skin, red beans and brown sugar. Boil it, eat beans and serve soup.

3, the skin of winter melon is cool, which has the effect of clearing heat and relieving summer heat. In the hot summer, when you are thirsty due to the heat, and your urine is short and red, you can use15-30g of winter melon peel and watermelon peel to decoct water instead of tea. If you have symptoms of summer dampness, such as dizziness, chest tightness and loose stool, you can also use it with raw Coicis Semen, talc and flat bean curd.