1. Fried food. Many people like to eat fried and barbecued food. These foods are cooked at high temperatures and taste very good. Most of this kind of food is purchased from outside. If you can't eat it and don't want to waste it, you will put it in the refrigerator and eat it the next day. It is best not to eat this kind of food. Fried food will produce a lot of harmful substances during the preparation process. If it is stored overnight, the amount of harmful substances will only increase even more, and may exceed the range stipulated by the country, so it can no longer be eaten. .

2. Tremella fuciformis soup. I believe many people like to drink tremella fungus soup. The taste of tremella fuciformis soup is very good, sweet and mellow, and tremella fuciformis also has very high nutritional value and health care effects. Therefore, in most cases, I cook a lot, and if I can’t finish it, I put it in the refrigerator and eat it the next day. But in fact, you can no longer drink this kind of white fungus soup. The amount of nitrite in it will increase. If you drink it, it will be harmful to your health.

3. Runny eggs. Eggs are a favorite food of many people. They basically eat one every day. Most people don’t like to eat fully cooked eggs. They like to eat runny eggs because of the yolk inside. Undercooked, the protein is relatively tender. This kind of egg is more delicious when it is freshly cooked. But be careful not to eat them overnight, because half-boiled eggs themselves are not completely sterilized. In addition, they are rich in protein and can easily breed bacteria. If they are eaten, they will be harmful to the body. If it is a fully cooked egg, it can be stored overnight, but you should also pay attention to eating it as soon as possible.