Green leafy vegetables are the most dangerous overnight. Vegetables generally contain a lot of nitrate, and the nitrate content of stem and leaf vegetables is the highest, such as leeks, garlic sprouts and bean sprouts. If the stem and leaf vegetables are reheated overnight, nitrate will be converted into a large number of nitrite, which is a very carcinogenic carcinogen.

2. Overnight seafood

Seafood such as crab, fish and shrimp will produce protein degradation products overnight. If you eat seafood overnight, it will do great damage to your liver and kidney. If you buy too much seafood, you can put raw seafood in a fresh-keeping bag or box, freeze it in the refrigerator and cook it next time.

3. Half-boiled eggs stay overnight

Eggs contain a lot of trace elements, which are good for health, especially yolk, which is rich in lecithin. However, if the eggs are not completely cooked, improper storage is easy to breed bacteria, causing gastrointestinal discomfort and flatulence, which is harmful to health.

4. overnight soybean milk

The fresh-keeping period of freshly squeezed soybean milk is 2-4 hours at room temperature, otherwise it will easily lead to deterioration of soybean milk in the case of a large number of bacteria, even if freshly squeezed soybean milk is put in the refrigerator, it cannot exceed 12 hours.

5, overnight tremella soup

Auricularia auricula soup is an advanced nutritional supplement, but after a night, the nutritional components began to decrease, resulting in harmful components. Because a large amount of nitrate in tremella will lead to the oxidation of normal hemoglobin into methemoglobin overnight, which will lead to the decline of oxygen-making function, further cause abnormal hematopoietic function of human body, and thus cause diseases.

6. overnight pot-stewed

You can't eat overnight lo mei, especially in bulk, which can't be done overnight. Even if stored in the refrigerator, it is easy to breed mold and psychrophilic bacteria, resulting in cross-infection of food.

7. Cold salad overnight

Cold dishes can be cooked basically without high temperature heating, and the bacteria and parasites left on the ingredients can't be killed. Some flora reproduce faster under low temperature and refrigeration, and bacteria can cause intestinal diseases. So it is best to eat cold dishes now, not overnight.

8, overnight mushrooms

There is too much nitrate left in mushrooms. If it is left for too long, it is easy to produce nitrite and cause cancer.

9, overnight porridge

Vegetable porridge is the easiest to inhale bacteria, and overnight rice porridge and food can easily lead to flatulence and indigestion, causing stomach discomfort.

10, overnight soup

Many people like to make soup. They put the soup they can't finish in the refrigerator and cook it the next day. This kind of overnight soup is best not to drink. The best way to preserve soup is not to put condiments such as salt at the bottom of the soup. The cooked soup is scooped out with a clean spoon, and it is best to keep it in the refrigerator with a clay pot. Because the leftover soup is stored in aluminum pot and stainless steel pot for a long time, it is prone to chemical reaction, so it should be kept in glass or ceramic utensils.

Baidu encyclopedia-overnight dishes