Does reheating rice cause cancer? Remind again: 5 kinds of food are not recommended to eat overnight to reduce risk

Ms. Liu quit her job and became a full-time mother at home after giving birth. She usually understands that it is not easy for her husband to earn money at work, and she lives a very frugal life.

I ate the leftovers at night and kept them in the refrigerator to continue eating. However, one morning after eating fried rice with eggs overnight, I started to vomit and have diarrhea .

The doctor's examination and analysis concluded that it was food poisoning, which had caused acute liver failure and kidney failure. Does that mean that the overnight rice could not be eaten?

1. Can I eat overnight rice?

Many people think that a meal that has been left for more than one night is considered an overnight meal. In fact, generally speaking, a meal that has been left for more than 8 hours is considered an overnight meal . In fact, overnight meals generally face two major safety hazards. On the one hand, microorganisms may multiply and cause food to deteriorate. On the other hand, the increase in nitrite in it may cause food poisoning and increase the risk of cancer.

Previously , a program on Beijing TV conducted an experiment. The researchers put rice, steamed buns, root vegetables, solanaceous vegetables, green vegetables, meat, braised eggplant, garlic broccoli , etc. for 0 hours, 6 hours, 24 hours, etc. After 48 hours , the nitrite content in them was measured, and it was found that rice, steamed bread, meat, etc. had been placed for 48 hours, but no nitrite was detected, while nitrite was detected in several other vegetables. The higher the content of the substance. In this way, if it is rice alone, it can still be eaten overnight if it is placed in the refrigerator.

Second, the second heating of rice will cause cancer?

There is also a saying: rice stored at room temperature will breed bacteria, and bacteria will produce toxins if stored for a long time, which may cause food poisoning if people eat it, and the toxins cannot be eliminated by secondary heating, and may cause cancer. Is this true?

It is true that if the rice is placed at room temperature, bacteria may grow. Some people think that leftovers contain nitrate. During the second heating process, nitrate may be converted into nitrite under the action of bacteria , but in fact, heating has nothing to do with the reaction of these two substances. There is also no conclusive evidence for carcinogenic claims.

3. It is these x kinds of food that are really not recommended to stay overnight

It may not be a big problem to leave simple rice overnight. It is these kinds of foods that are really not recommended for overnight.

1. Lo-mei in bulk

Lo-mei in bulk may produce mold, psychrophilic bacteria and other bacteria even if it is placed in the refrigerator overnight, so it is not recommended to store it for too long.

2. Tremella fungus

Tremella, fungus, etc., if soaked for too long, may be contaminated by Pseudomonas cocotoxin and produce oryzae acid toxin . After ingestion by the human body, it may cause symptoms such as abdominal distension, abdominal pain, and diarrhea. It is best not to leave or soak hair too long.

3. Soft-boiled eggs

The soft-boiled eggs themselves are not fully cooked, and if they are left overnight, they may be contaminated with bacteria and cause foodborne illnesses accidentally.

4. Green leafy vegetables

After the green leafy vegetables are cooked, even if they are placed in the refrigerator, the nitrite content will increase. Although it will not be poisoned immediately, it is recommended to eat it without eating it. The nitrite content at room temperature may be more.

5. Tofu

Tofu left overnight at room temperature can be said to be a microbial culture medium, which is easy to breed bacteria, so it is recommended not to leave it overnight.

If it is pure rice, the nitrite content will not increase if it is left overnight, but it is best to store it in the refrigerator. Usually, some food is really not suitable for overnight storage. Avoid cooking too much at one time. It is best to buy fresh vegetables, and there will be no leftovers.

References:

[1] "[Leisure and Health Care] How to "Safely" Eat "Overnight Meals"". Health Guide. 2022-01-26

[2] "Rice, Chicken, Mushrooms... Can These Foods Cause Cancer After Reheating? After reading, I finally know how to eat". Popular Science China. 2020-01-18

[3] "Overnight water and overnight vegetables do not cause cancer! What really can't be eaten overnight is it! ". Tencent Medical Code. 2021-12-23

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