In daily life, many families like to save the leftover rice from the previous night until the morning of the second day to make egg fried rice, which can not only make a delicious breakfast, but also save a lot of food.
However, in the usual Internet has been said to eat leftovers often, is not conducive to physical health, and even has the risk of carcinogenicity, especially now there is a saying on the Internet, rice can not be heated twice, eating secondary heating of rice will cause cancer, this kind of remarks let people see it will feel very panicky, is there a scientific basis for this sentence in the end?
Will secondary heating of rice be "carcinogenic"?
In fact, this statement is a little too one-sided, as long as the rice is properly stored, the secondary heating will not have any impact on the body.
Many people feel that rice has been placed for a long time, breeding a large number of bacteria and viruses, especially after spoiling or heating rice, will produce nitrites and waste liquid for reaction, easy to produce carcinogens.
Although leftovers do breed a certain amount of nitrite, but we should also pay attention to the fact that many foods in daily life have nitrites, regardless of the dose to talk about toxicity is to play hooligans, only when the content of nitrite reaches a certain level, it will pose a threat to the body.
The content of nitrite in rice is very small, which can be directly ignored, and everyone should pay attention to storage when storing, which generally does not cause any impact on the body.
However, we need to pay attention to the fact that if the rice has mildew and deterioration, do not eat the moldy and deteriorated rice contains aflatoxin, the liver toxicity of aflatoxin is very strong, even if it is heated, it can not kill it, if you eat a large number of long-term, it will lead to hepatocyte necrosis and induce liver cancer.
Of course, from the perspective of physical health, everyone usually eats as little leftovers as possible, after all, leftovers do breed a lot of bacteria, and the nutritional value is greatly reduced, which will not pose any health threat to the body, but the significance of eating is not large.
Remind again and again: these 5 kinds of food, it is best not to heat it twice
potato
Once potatoes encounter a high temperature of more than 120 degrees, they will release a toxic chemical, acrylamide, which is relatively high in carcinogenicity.
In daily life, potato chips and fries are all kinds of small snacks are processed by high temperature, nutrients have been completely lost, and in the process of frying and cooking, the content of acrylamide is greatly increased, which will cause nervous system poisoning to the body and affect the normal operation of the body, so potatoes should not be heated twice.
Leafy greens
Green leafy vegetables are best not to carry out secondary heating, because the content of nitrite in green leafy vegetables is relatively high, after a period of time the content of nitrite will increase, if you often eat a lot, it will definitely affect your health, it is recommended that you do not eat leftovers often in normal times.
mushroom
Mushrooms belong to the fungal food, this type of food is best not to carry out secondary heating, because mushrooms are easy to breed a large number of bacteria after a period of time, if you continue to eat it will increase the burden on the stomach and intestines, may cause food poisoning, diarrhea phenomenon.
Heart-watering eggs
Some people especially like to eat the heart of the egg, there is a different taste, the yolk of this egg is still in a flowing state, but this egg contains Salmonella, even if it is heated, it can not be completely killed, after a night, it will breed more bacteria and Salmonella, which may cause food poisoning.
seafood
Seafood is easy to breed a large number of bacteria, uneaten seafood placed for too long, breeding bacteria to more, after the secondary heating will increase the detoxification burden of the liver, if eaten improperly, may induce indigestion, diarrhea, nausea, vomiting and other poisoning reactions.
"Secondary heating of food" is not terrible, please treat leftovers scientifically
"Scientific storage" is more reasonable
Since the food has been leftover, everyone should not do unnecessary actions, reduce the number of times to flip the leftovers with chopsticks, try to ensure the cleanliness of the leftovers, ensure its tightness, and store them separately in the cold room to avoid breeding a large number of bacteria.
It is really necessary to "leftovers", it is recommended that leftover meat is not leftover "dishes"
From a realistic point of view, it is recommended that everyone leave meat and do not leave vegetables, and it is best to eat all the vegetables in each meal, because the toxic substances bred by meat are relatively small.
Need to be "hot" before eating leftovers
Leftovers are safer after being heated through, and can also restore the taste and texture of food, avoiding many food safety problems.
How much to eat hot, it is not recommended to "repeatedly heat"
Although leftover meals can be eaten, but we should not always be leftovers, although the safety risk of hot meals is relatively small, but repeated heating, nutritional value is reduced, the taste is reduced, and nitrate is also increasing, so in normal times, it is best to eat how much to do, do not leave too much.