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 Chinese kale) will deposit a layer of waxy hoarfrost on the surface, which can protect and moisturize the plant epidermis. Generally speaking, frost is more obvious when vegetables are fresh. The frost of wax gourd is a symbol of maturity. The more frost, the better it cooks.

2. Grapes, persimmons, kelp and many other ingredients have a layer of frost. For example, there is a layer of frost on the surface of grapes. Look carefully at plums, prunes and blueberries. Washing apples will make you feel greasy. 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 does not need to be washed 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 stewing or cooking soup.

2. "Hunan Pharmacology" mixed and decocted the skin of winter melon with cortex Acanthopanacis and ginger; If you treat edema due to physical weakness, use appropriate amount of winter melon skin, red beans and brown sugar. Boil, 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 hot summer, when you are thirsty and have short urine due to heat, you can use 65438 grams of winter melon skin and 65438 grams of watermelon skin to drink tea instead. If you have symptoms of dampness in summer, such as dizziness, chest tightness and loose stool, you can also use it with raw Coicis Semen, talc and tofu.

Extended data:

First of all, there are other vegetables that can also be eaten with skin:

1, cucumber skin can detoxify. Cucumber skin contains more bitter element, which is the nutritional essence of cucumber. Eating cucumber with skin can not only fully absorb vitamin C, but also help the human body to effectively detoxify. In addition, cucumber skin has antibacterial and anti-inflammatory effects. The "fresh mixed three skins" made of watermelon skin, cucumber skin and winter melon skin after scalding and cooling are most suitable for dieters.

2, tomato skin anti-cancer. Lycopene is a natural substance with the strongest antioxidant capacity found so far, which can prevent cardiovascular diseases, improve immunity and prevent cancer. Lycopene is the most abundant in tomato skin. In addition, tomato skin also helps to maintain intestinal health. So tomatoes with skins are the most nutritious.

3. Eggplant skin protects the cardiovascular system. Eggplant is a good food for cardiovascular patients, but eggplant skin contains a lot of nutrients. After peeling eggplant, it will not only reduce the health care value, but also turn black easily because the iron in it is oxidized by air, which will affect the absorption of iron by human body.

Second, because many people are worried about pesticide or bacteria residue on vegetables, they are used to peeling vegetables before eating. Here are some scientific ways to wash vegetables:

1, running water washing+soaking method: this method is used for leafy vegetables, such as spinach, day lily, leek flower, lettuce and Chinese cabbage. Generally, soak in clean water for 15 minutes, and then rinse with running water for two or three times. Fruit and vegetable cleaning agents can increase the dissolution of pesticides, so a small amount of fruit and vegetable cleaning agents can be added when washing these vegetables.

2. Storage method: During storage, pesticides will slowly decompose into harmless substances over time. Therefore, fruits and vegetables that are easy to store can be stored for a certain period of time to reduce pesticide residues. This method is suitable for non-perishable varieties such as pumpkin and wax gourd. At the same time, it is recommended not to eat freshly picked fruits and vegetables immediately.

3, running water washing+alkaline water soaking method: can be used for all kinds of vegetables and fruits. First, clean the dirt on the surface of vegetables and fruits and soak them in alkaline water for 5~ 15 minutes. The preparation ratio of alkaline water is: add 5 ~10g of alkaline noodles to 500ml of water. Rinse with clear water for 3~5 times after soaking.

4, heating method: commonly used in celery, spinach, Chinese cabbage, cabbage, green pepper, cauliflower, beans and so on. First, clean the dirt on the surface of these crops with clear water, put them in boiling water for 2~5 minutes, then rinse them with clear water 1~2 times, and then fry or burn them.

Three, melon preservation method:

Wax gourd with complete epidermis and frost should be selected, covered with wooden boards in a ventilated and cool place, and placed on it, which can keep fresh for 4 ~ 5 months.

Baidu encyclopedia-wax gourd

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