1, vegetables cannot be eaten overnight.
It's best to eat vegetables on the same day, and don't leave them for the next day. These overnight green leafy vegetables not only lack nutrition, but also produce pathogenic nitrite.
Seafood can't be eaten overnight.
Overnight seafood is easy to produce protein degradation products, which will have certain damage to liver and kidney function.
3. Half-baked eggs should not be eaten overnight.
Nowadays, many people like to eat semi-cooked eggs, thinking that semi-liquid eggs that are not fully cooked will not destroy their nutrients, but in fact, raw eggs contain a lot of bacteria and viruses, and in fact, the nutrition of cooked eggs and semi-cooked eggs will not be much different. And eating half-baked eggs overnight is particularly easy to breed bacteria, causing gastrointestinal discomfort and flatulence.
4. Don't drink boiled water overnight.
The content of nitrite will increase obviously when the boiling water stays for more than 24 hours or boils for a long time. According to scientists, within 3-5 minutes after tap water is boiled, the content of harmful components such as nitrite and chloride is the lowest, which is most suitable for people to drink. The content of nitrite is 65438 0.3 times higher than that when boiled for 24 hours.
5, pot-stewed cold dishes can not be eaten overnight.
Many people like to put it in the refrigerator and eat it the next day if they can't finish the braised dishes and cold dishes they bought the day before, but this practice has great security risks. Cold salad will inevitably be polluted during processing, and even if it is refrigerated, it may deteriorate overnight. Therefore, these stews and cold dishes should be cooked and eaten now, not only for taste, but also for health.
6, tremella soup can not be drunk overnight.
Theoretically, all foods with high nutritional value should not be eaten overnight, and it is easy to become a hotbed of bacteria, even if the nutritional content is reduced. The same is true of tremella soup. Tremella fuciformis cultivated indoors and in the field both contain a lot of nitrate. After cooking and bacterial decomposition, nitrate will be reduced to nitrite. If you drink it on the same day, nitrous acid can naturally enter the blood circulation. Red blood cells in the blood contain hemoglobin, which can carry a lot of oxygen for the body. However, tremella fuciformis will react with nitrite overnight, so that normal hemoglobin in the human body will be oxidized to methemoglobin, and the oxygen carrying capacity will be lost, resulting in the loss of normal hematopoietic function in the human body.
7, overnight soup should pay attention to preservation.
Southerners like soup very much, especially Cantonese, who are famous for their love of making soup. Put the soup you can't finish in the refrigerator and cook it the next day. You can make great noodles with the soup carefully cooked the day before. However, cheese manufacturers should pay attention to the preservation method of overnight soup. First, when the soup is just cooked, use a clean and pollution-free spoon and then put the seasoning. If you can't finish it, you should choose to put it in the refrigerator with crock, glass or ceramic utensils, especially in aluminum pot and stainless steel pot, otherwise it will easily produce chemical reactions, which is not conducive to your health.