How long does a meal sit out as an overnight dish? Can eating it cause cancer?

Overnight dishes believe that everyone understands this concept, overnight dishes are overnight dishes as the name suggests! Not all overnight dishes cannot be reheated, only leafy greens and other vegetables cannot be reheated! In addition, some fried things are better not to be reheated and eaten!

The statement that overnight dishes can cause cancer is not for all dishes, but for some dishes! Therefore, we can't one-sidedly believe that overnight food will cause cancer, this kind of thinking will lead to great waste!

Saving is glorious, this tradition does not conflict with eating overnight dishes! After the leafy greens are left overnight, do not reheat them and eat them! Because leafy greens contain some substances that can become carcinogens once heated!

The same is true for some fried dishes, where the nitrate in it will turn into nitrite when reheated, and excessive intake of nitrite is very carcinogenic! Some pork stews can be reheated and eaten as long as they are stored properly! Remember, store it properly!

Refrigerator. Most families will store leftovers from their last meal in the refrigerator! It's right to put it in the freezer!

But how do we put it in the fridge? First of all, don't leave your food cold before putting it in the fridge! This is the wrong thing to do!

Secondly, remember to seal the leftovers in a crisper with a lid and put them in the refrigerator while hot! The main reason why it should be put hot is because it is the slowest bacterial multiplication in the refrigerator at this temperature! If you put it in the refrigerator after cooling, even if there is no carcinogen formation, there will be a large number of bacteria multiplying, and it will cause diarrhea after eating!

Do less. To be on the safe side, it's better to cook less when we're cooking! It's better to eat less once than to eat overnight!

Although some dishes are edible if they continue to be hot! But the nutritional value will be minimal! So,When cooking, you can do less!

After eating one meal, you can not only ensure nutrition, but also do not have to worry about the carcinogens in the overnight dish, killing three birds with one stone!

Overnight meals belong to overnight dishes, and all overnight dishes may not be carcinogenic, so they should be distinguished!

If the meal is left for more than 12 hours, it is considered an overnight dish, and if it is eaten for a long time, it will cause cancer.

More than six hours is counted as an overnight dish. Studies have shown that overnight dishes contain carcinogens aflatoxin, but the tradition in our country is that thrift is a virtue, generally speaking, leftovers will continue to be eaten, and whether eating carcinogenic is to be seen by integrating many factors. It is now advisable not to eat overnight dishes.

Meals are left out for a while, about five to eight hours to count as overnight dishes. Eating it will produce carcinogenic substances, which can cause great damage to the body.

Overnight dishes are fake for causing cancer, but they are not recommended to be consumed.

In vegetable ingredients, some bacteria ferment due to overnight exposure to air.

For example, combined with the salt of the vegetable itself, nitrite is formed, and nitrite is produced by the work of stomach acid to produce nitrosamines, which are the real carcinogenic ingredients.

Of course, this requires a long-term, large amount of continuous intake of nitrite to cause cancer, such as eating more than 100 catties of overnight vegetables every day, which may reach a carcinogenic dose.

Overnight dishes are fake for causing cancer, but it doesn't mean that eating overnight dishes is a healthy habit. Overnight dishes will be flooded with microorganisms.

Erosion can easily lead to diarrhea and cause gastrointestinal infections, so from this point of view, it is recommended that everyone eat freshly and eat fresh vegetables.

Eating overnight dishes regularly can cause cancer.

People say that overnight vegetables can cause cancer, mainly because overnight vegetables produce nitrite, which is a well-known carcinogen, especially overnight vegetables.

Although this is the case, after 24 hours of an overnight dish, the detection level of nitrite is 7 mg, which is far less than the national standard of 20 mg, and if it is a very small amount of nitrite, it will be excreted in the urine.

It is an exaggeration to say that overnight vegetables can cause cancer, but it is undeniable that if you eat overnight vegetables, it may still cause cancer. If you only eat overnight dishes once in a while, instead of eating one meal every day, it's completely fine.

In addition to the fact that it can cause cancer is still up for debate, staying up late can indeed harm human health, which is a certain thing, so if the elderly at home often eat some overnight leftovers, remind them to quickly correct this habit.

Because some green leafy vegetables contain more nitrates, if they are left for too long after cooking, the nitrates will be reduced to nitrite under the decomposition of bacteria, which has carcinogenic effects and cannot be removed by heating.

After cooking, due to heating, the enzymes of the plant itself are destroyed by high temperature, and the washing before cooking will remove some bacteria, and the heating of the cooking process will remove a large number of bacteria, so the storage of cooked vegetables for a period of time will not increase the nitrite content. Leftovers that have been eaten, even though they may be contaminated by bacteria during the eating process, most households currently have refrigerators, and the growth and reproduction of bacteria is slow at relatively low temperatures, and they will not produce a lot of nitrate reductase, so they will not produce much nitrite. However, it should be noted that after cooking, the tissue integrity of vegetables is damaged and it is easy to be invaded by bacteria, so if cooked vegetables are not stored in the refrigerator, they should be sealed with a film to prevent the production of nitrite due to mass multiplication after bacterial invasion.

Nitrite itself is not carcinogenic, it can be used as a precursor of carcinogens, and the putrefage product amines of proteins are combined to form nitrosamines, which are carcinogenic. However, in addition to the need for raw materials for the combination of nitrite and amine, there must be suitable reaction conditions, one is the existence of enzymes for the synthesis of nitrosamines, and in the absence of catalysts, nitrosamines will be produced at a higher temperature or higher, and generally 185 is the most suitable temperature for nitrosamine synthesis. The enzymes that synthesize nitrosamines are mostly produced by bacteria, so if you do not pay attention to oral hygiene, the food remaining in the mouth will spoil under the action of bacteria, producing amines, and the nitrite in the food plus the nitrite in the saliva will synthesize nitrosamines under the action of nitrosamine synthase produced by bacteria.

In addition to the oral cavity, the stomach when gastric acid secretion is insufficient, and the bladder with urinary tract infection can also be used as a place for nitrosamine synthesis due to the presence of bacteria.

Therefore, nitrite is not a carcinogen, and its production requires certain conditions, and the synthesis of nitrosamines from nitrite also requires certain conditions, so as long as it is stored reasonably, there will be no safety problems, and there is no need to throw away leftovers. Note that the bit is still edible.

Regardless of the urban elderly, the rural elderly, most of them are reluctant to pour leftovers, they do not waste a grain of food, children eat leftover vegetables, basically they come to clean up, leftovers soup is high and greasy, long-term eating will increase the risk of "high blood pressure, high blood sugar, high blood For overnight dishes, people who understand know that it is not good to eat overnight dishes, because the vegetables will inevitably breed bacteria after a long time, and if the outside temperature is relatively high, it may also deteriorate. There is also that nitrite will be produced in the overnight dish, which is a carcinogen, and even if there is an overnight dish, you have to eat it before, but there are very few people who get cancer at that time, the key is that the sky is blue, the water is clear, the air is good, and the land is planted with human manure, pig dung, sheep dung, soybean meal, lai meal, and sludge in the river.

<> the meals placed at room temperature (25), after 6 hours, although the nitrite content has not changed significantly, the bacterial reproduction is accelerated, and the number of bacteria has increased a lot compared with when it is just out of the pot, especially those cold dishes, the number of bacteria is more, and it is easy to be used as leftovers after eating, if there is no condition to keep it, it is best not to continue to eat the next day, the family can have a refrigerator in the leftovers, leftovers container pasted with plastic wrap and put in the refrigerator to keep it fresh, and it must be cooked the next day before eating. Fresh vegetables are used as raw materials, and the cooked vegetables are not turned around, but are directly served in a clean container and immediately put in the refrigerator to refrigerate, which can greatly reduce bacterial contamination and reductase activity.

The most unedible leftovers are seafood products, which are prone to protein degradants after overnight, which can damage liver and kidney function. In particular, shrimp, crab and other rotten seafood products, their intestines and stomach contain a variety of bacteria and putrefactive substances, if the overnight dish can not be eaten, because the cooked vegetables with salt are placed in the refrigerator to produce a kind of sub called ferrous nitrate, which is a carcinogen, eating has an impact on the body, so it can not be eaten. Once the leafy greens are processed, it is best to eat them within four hours.

Vegetables that have been left overnight have been largely deprived of nutrients. Moreover, compared with other overnight vegetables, overnight green leafy vegetables will produce more nitrite, which cannot be removed by heating, which is harmful to health.

It is best not to eat overnight dishes, because there will be aflatoxin in the overnight vegetables after overnight fermentation. Aflatoxin is a first-class carcinogen that can easily cause tumors and cancer in the body.

Overnight meals should not cause cancer. However, the nutrients in the overnight meals are lost, which may have an impact on the gastrointestinal tract, so we should pay attention to dietary hygiene in daily life, you can eat more fresh vegetables and fruits, which is very helpful to the body, and protein-rich foods can also be eaten more, which can strengthen the body's resistance and immunity.

Some green leafy vegetables contain nitrates, and if they are left for a long time after cooking, nitrates will form nitrites, which have carcinogenic effects, so it is best not to eat dishes that have been left for a long time or overnight dishes.

In our daily life, many people will think that overnight dishes cannot be eaten, because overnight dishes will produce a large number of carcinogens, and if people eat them, they will cause great harm to the body. It is true that some overnight dishes will be decomposed by bacteria and viruses in the process of placement, so that a large amount of nitrite will be produced, which seriously endangers our health, but there are some overnight foods that can be eaten with confidence. Can you eat "overnight dishes" with confidence?

These 3 kinds of food, just eat with confidence, many people don't know.

Can't you eat all "overnight dishes"? Many people are wrong, these 3 foods can be eaten with confidence.

1. Melon vegetables.

Melons and fruits can be eaten overnight, because the nitrite content of melons and fruits is very low, and they will not produce too much nitrite even in the process of placement, so they will not cause great harm to the body, such as cucumbers, loofahs, bitter gourds, zucchini, etc. Pay attention to keep it fresh in the refrigerator in time. But it is better not to consume overnight dishes in the hot summer months.

2. Meat. In our daily life, we often cook a lot of meat, and if we can't finish a meal, we may save it for the second meal or overnight, and if we throw it away, it's a pity, and many people are reluctant. In fact, relatively speaking, meat can be eaten overnight, because meat contains less vitamins itself, and even if it is reheated overnight, the nutrients will not be much less, and it will not be produced.

Too many carcinogens will not cause great harm to the body, so meat can be eaten with confidence, pay attention to keep it fresh in the refrigerator in time.

3. Rice. When many people make rice, they may not be able to grasp the amount, so they will cook a lot. In fact, rice can also be placed, if it is left overnight, it will not cause great harm to the body, but it must be noted that rice is acidic food, if it is placed in the air, it is easy to cause rice to deteriorate, so when the rice becomes cold, the remaining rice must be put into the refrigerator, so that you can eat it with confidence and will not cause too much harm to the body.

If you eat overnight dishes for a long time, it may cause cancer, because overnight dishes may be infected with a lot of bacteria or viruses, and there are many foods that will deteriorate, and our human eyes cannot see them.

Eating overnight meals and maintaining this poor diet regularly is likely to lead to cancer. This is because overnight dishes are prone to nitrosamines, which have proven to be one of the strongest chemical carcinogens to date. This chemical carcinogen, as long as it is ingested in small amounts, can be excreted from the body as quickly as possible through its own defense function.