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What things are harmless to the human body if eaten overnight?
China has always regarded thrift as a virtue. So many people understand that waste is shameful from an early age. Therefore, most families are used to saving some inedible food for the next day. However, with people's attention to health preservation, it is known that many foods will do harm to human health after being eaten overnight. So all food is like this?

1, can't drink boiled water for one night?

Yes, it is best not to drink boiled water overnight, because the content of nitrite in boiled water for more than 24 hours is obviously increased, and nitrite can form carcinogen-nitrosamine in human body, which is extremely harmful to human health. Repeated cooking and cooking for too long also have health concerns.

China residents have the habit of drinking boiled water, which can be boiled in 3 to 5 minutes. At this time, the content of harmful substances such as nitrite and chloride is the lowest, which is most suitable for people to drink. And it is best to burn now and drink boiled water, and it is best to drink boiled water on the same day, and don't drink boiled water for too long.

2. Can tremella be eaten overnight?

Tremella is a kind of advanced nutrition, but tremella should not be eaten overnight, and the decrease of nutrition will produce a lot of harmful ingredients.

Whether cultivated indoors or outdoors, tremella contains more nitrate. Leave it for too long after cooking, causing bacteria to multiply, and bacteria will reduce nitrate to nitrite. After nitrite enters human blood, normal hemoglobin in human body will be oxidized to methemoglobin, thus losing oxygen carrying capacity, leading to the loss of normal hematopoietic function of human body, which will seriously cause hypoxia reaction.

3. Don't drink overnight tea.

If the tea leaves are left overnight for too long, the nutrients in them will be exhausted by bacteria and mold, so the tea leaves cannot be drunk overnight.

4. Can't you eat eggs overnight?

Some people think that eggs can be eaten overnight, like tea eggs. Some people think this is impossible. Eating eggs overnight is easy to get intestinal gas and swollen scrotum. So can I eat eggs overnight?

The expert's opinion is that there is no problem if the eggs are completely cooked for the first time, properly stored at low temperature and eaten overnight. Tea eggs are boiled twice, the first time, the second time, the egg skin is broken, tea and other auxiliary materials are added, and then boiled, so tea eggs must be boiled. However, if the egg is not completely cooked, the immature part may have propagated bacteria after overnight. Don't eat it even if it is cooked for the second time. Eating it may cause symptoms such as gastrointestinal discomfort and flatulence.

Now some people like to eat those half-baked eggs. Be careful not to eat the first meal overnight, and don't eat it the next day even if it is cooked.

5, seafood can not be overnight

Overnight foods that are not suitable for eating include fish, seafood, green leafy vegetables and cold salad.

Fish and seafood can easily produce protein degradation products overnight, which will damage liver and kidney function.

Green leafy vegetables all contain nitrate. Overcooking or leaving it for too long may lead to bacterial proliferation, reducing nitrate to nitrite, and vegetables will go bad.

Cold salad is polluted during processing, and it is more likely to deteriorate after overnight, so it should be cooked and eaten now.

6. Don't eat bad food at home overnight.

Pot-stewed and rotten vegetables are both popular seasonal dishes in Shanghai. Many citizens also like to put the leftover stewed and spoiled food in the refrigerator for the night, but this practice has great food safety hazards.

To prevent food poisoning, don't eat inferior goods braised overnight in spring and summer.

Bulk braised pork should be eaten on the same day, not overnight. From the perspective of food safety, this is unsanitary. If possible, it is best not to eat bad goods overnight.

Food experts warn that even the food in the refrigerator is not absolutely "safe". Refrigerators are prone to mold and psychrophilic bacteria.

As the saying goes, "illness comes from the mouth", and many diseases are caused by diet. Especially if you accidentally eat food that is rotten or infected by bacteria, it will make you have diarrhea at the lightest. The above situations are all details that need to be paid attention to in daily life. Don't eat overnight dishes casually.