In recent years, I have often heard that eating overnight meals can cause cancer, because many people often cook too much, and the leftovers are wasted when they are thrown away, so many people put the leftovers in the refrigerator and eat them the next day, but everyone doesn't know that eating overnight meals often is harmful to the human body. What's the harm?
Overnight food not only refers to overnight food, but also counts as overnight food if it exceeds 8~ 10 hour. There are two reasons for the increase of toxic components in food. First, chemicals in food can produce carcinogens, such as nitrite, which cannot be removed by heating. Second, in the process of placing, foreign bacteria are polluted twice. There are two major safety problems in night eating. One is microbial reproduction, which will lead to food deterioration; Second, the increase of nitrite content will cause food poisoning and have cancer risk.
Just like overnight tea, tea belongs to leaves, with relatively high nitrate content, but generally speaking, a cup of tea needs 1-2 grams of tea, with relatively low total nitrate content. The total nitrate in a cup of tea is only 6 mg, even if it is all converted into nitrite, it will not cause poisoning. Overnight water poisoning is purely a rumor. There is no basis. Auricularia auricula does contain more nitrate, but that's the amount of dried products. Finished, one of them.
Nevertheless, the threat of overnight food to food safety is still higher than that of freshly cooked food. Therefore, try to eat fresh food, as long as it is well preserved, you can cut the remaining food into small pieces. The best way is to put aside the cooked leftovers, cut them into small pieces and put them in a clean fresh-keeping box. When the temperature is not too hot, put them in the refrigerator for storage.
For auricularia auricula, if you soak it too much at a time, just put a new water in the refrigerator to avoid rancidity and stink, and you can continue to cook and eat it after washing it the next day; As for overnight tea, just pour a cup of boiling water the night before and cover the cup to prevent dust from entering the air. You can still drink it the next morning, but overnight tea will not cause poisoning. However, because its fragrance and taste are not as good as those of the newly brewed tea, there is a danger that microorganisms will exceed the standard, so it is best not to drink it.
In general, the nitrate content of stem and leaf vegetables is the highest, while that of melon vegetables is lower, and there are more roots and cauliflower. Therefore, if you buy a lot of vegetables at the same time, you should first eat leafy vegetables, such as Chinese cabbage and spinach. If you plan to cook more hot dishes the next day, try to cook less stem and leaf vegetables and choose more melon vegetables.
Eating seafood overnight is harmful to liver and kidney.
Seafood, such as crab, fish, shrimp, etc. , will produce degradation of protein overnight, damage the liver and kidney function. If you really buy too much, you can put raw seafood in a fresh-keeping bag or box, freeze it in the refrigerator and cook it next time.
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