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According to the preliminary analysis of your problem, it is recommended not to eat overnight dishes, because a large number of microorganisms are parasitic in the overnight dishes, including bacteria, E. coli, etc., which are easy to enter the human body and cause serious lesions.
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Overnight dishes are not carcinogenic.
Why is it said that overnight dishes cause cancer? In fact, the culprit is nitrite in the overnight dish. Nitrite is widely found in nature, including grains, vegetables, fish, eggs, and meat.
Nitrite itself is not carcinogenic, and nitrosamines are carcinogenic only when they react with protein decomposition products secondary amines under the action of gastric acid.
Did the nitrites in the overnight dish exceed the standard?
The World Health Organization has set a daily allowance of 0 body weight for nitrite. In other words, as long as a normal person does not consume too much of an overnight meal, the nitrite intake will not exceed the standard. What is the concept of not exceeding the standard?
For example, an adult weighing 60 kg is safer to consume less than 12 mg of nitrite per day. To reach the toxic dose, an intake of 300 500 mg is required.
How much is 12 mg? Take spinach with high nitrate content in vegetables as an example, if you don't turn it after cooking (the bacteria don't spread much), put it in the refrigerator for 4, spinach and other green leafy vegetables will have a nitrite content of about 3mg kg to 9mg kg after 24 hours, which is still a very low amount. Therefore, it is necessary to eat at least 30 kilograms of overnight spinach to achieve the dose of poisoning, which is obviously impossible.
How to deal with overnight dishes.
1. Refrigerate overnight dishes in time and store them in the refrigerator in time to inhibit the growth of bacteria and reduce the production of nitrite.
2. Meals and soups are packaged separately because oil and water will be conducive to the reproduction and growth of bacteria, meals and soups should be packaged separately, if there is more oil in the vegetables, the oil and water should be poured out and then packed into boxes.
3. Heat leftovers thoroughly, be sure to heat them thoroughly. Thorough heating is to heat the dish as a whole to 100 degrees Celsius and keep it boiling for more than 3 minutes. Therefore, you should choose dishes that are suitable for reheating, such as potatoes, carrots, beans, eggplant, pumpkin, radish, mushrooms, kelp, fungus, etc.
In fact, not all overnight dishes cannot be eaten, and it is still necessary to pay attention to choosing the right way to store overnight dishes, so as to avoid the harm caused to our body by eating overnight dishes. Now you know, in fact, there is no need to be afraid of overnight dishes, as long as the nitrate and nitrite content is controlled within a safe range, overnight dishes are still relatively safe.
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Stir-fried spinach should not be eaten overnight. Because the fried dish has been left for a long time, the nitrate in the dish will be reduced to nitrite under the action of bacteria. This nitrite-containing leftovers will not work even if they are placed in the refrigerator.
Leafy vegetables such as spinach, rape, and chrysanthemum contain a lot of nitrates and cannot be eaten overnight after being cooked. After spinach is left overnight, more than half of the nutrients are lost, and it can even be said that there are no nutrients consumed. Because spinach is stored for too long, nitrate will be converted into nitrite.
It has a carcinogenic effect and cannot be removed by heating. Nitrite can hinder the oxygen-carrying capacity of the body's blood, and vomiting, diarrhea and other reactions will occur about 1 hour after eating vegetables with excessive nitrite.
The chemicals in spinach produce carcinogens, such as nitrite, which cannot be removed even when heated. Nitrite can oxidize the normal oxygen-carrying low hemoglobin into methemoglobin in the blood void, thus losing the oxygen-carrying capacity and causing tissue hypoxia. Another reason is that it is secondary contamination by foreign bacteria when it is placed, which can cause a series of symptoms such as diarrhea after eating.
Precautions for consuming spinach:
1.It is better to choose spinach with short red stems and fresh and elastic leaves.
2.Choose spinach, the leaves are easy to thick, spread well, and the leaf surface should be wide and the petiole should be short. If there is discoloration in the leaves, it should be eliminated by macro omission.
3.Nowadays, spinach is sold almost all year round, and usually, spinach in spring is relatively short and tender, which is suitable for cold dressing; The spinach in autumn is thicker and suitable for stir-frying.
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Because wakame contains a lot of nitrate, after a night, wakame will be oxidized by the air and bacteria, which will convert the nitrate into toxic nitrite, so the wakame can not be eaten overnight.
Wakame is not only an edible economic brown algae, but also a raw material for the comprehensive utilization of alginic acid. Wakame is a natural treasure trove of trace element imitation liquid and minerals, containing more than a dozen essential amino acids, calcium, iodine, zinc, selenium, folic acid and vitamins A, B, C and other minerals. Wakame contains 10 times more calcium than the "king of calcium" milk, and 3 times as much zinc as beef, the "expert in zinc supplementation".
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Whether the overnight meal can be eaten or not needs to be judged according to the situation. Green leafy vegetables should be eaten freshly, not overnight, long-term storage will breed nitrite, long-term consumption will cause cancer, and meat food in the refrigerator sealed and refrigerated, no deterioration, overnight can be heated and used. It is recommended that overnight dishes should be consumed within 24 hours and should not be reheated.
Can you eat overnight dishes?
Generally speaking, if it is a green leafy vegetable dish, it is best not to eat it overnight, most of the green leafy vegetables in life contain more nitrates, which will be reduced to nitrite if stored for too long after cooking, and it is easy to cause cancer when eaten for a long time, and it cannot be removed by heating, and some meats, in the case of proper preservation and no deterioration, can still be eaten after heating.
It should be noted that the overnight dish is actually mainly in the time and storage temperature, not in whether it is overnight, if the temperature is relatively high in the summer, the dish may be put for a few hours and cannot be eaten, and in the winter it may be put for two nights will not produce peculiar smell.
If you want to eat the unfinished dishes until the next day, you must refrigerate them, and they should not be put together when refrigerated, so they should be refrigerated separately, covered with plastic wrap or sealed in a crisper to avoid cross-contamination. Overnight dishes should not be stored for too long, and it is best to consume them within 24 hours.
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Vegetables should not be eaten overnight, as there may be a large number of bacteria multiplying in the overnight dish.
Green leafy vegetables themselves contain nitrates, and if left for a long time, nitrates will be converted into nitrite, which is very harmful to human health. Therefore, green leafy vegetables such as spinach, cabbage, celery, and rape should be eaten as a meal, and even if there is lettuce, it is best to dispose of it and not continue to eat.
How to save it
Because vegetables have definite health benefits, we can't stop eating them because they are "likely" present. For many people, it is also a very common thing to buy vegetables for a few days at a time. Therefore, the preservation of vegetables has become a very important issue in food health.
The production of nitrite in vegetables, the raw material is nitrate in vegetables, and the transformation conditions are mainly bacterial growth, and "overnight" is only a matter of time. Reducing nitrite production can be multi-pronged. First of all, reduce the preservation time of vegetables, especially green leafy vegetables, and increase the frequency of grocery shopping.
Secondly, the vegetables that need to be preserved can be washed and wrapped to reduce the bacteria carried. Uneaten vegetables can also be sealed and stored in the refrigerator.
The above content refers to Encyclopedia - Overnight Dish.
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Can you eat overnight dishes
Usually our family will have a lot of food, but there are not many people to eat, then it will cause a question, can these dishes be eaten tomorrow? Generally in the previous society, people's cherishing of food did not care about this kind of problem, and with the increasing development of social science and technology, many people want to know the answer to the question of can you eat overnight dishes, so let's briefly talk about it in the article.
Can you eat overnight dishes
1. Many people think that overnight dishes are edible, because we can put leftover vegetables in the refrigerator to keep them fresh. However, some people say that overnight dishes contain nitrite substances, which are a certain threat to human health, so if you want to eat overnight dishes, you need to eat them within 24 hours a day to avoid food producing more nitrite harmful substances.
2. The above is for vegetables, then the following is meat. Meat food is different from green vegetables, we all know that meat will be better preserved than green vegetables, meat can be stored in the refrigerator for 48 hours after processing in the kitchen, but in the process of refrigerator preservation, many nutrients in the meat will be quietly lost, and the protein of the meat will still be well preserved, so the overnight meat food can be eaten.
How to keep food fresh
1. First of all, we need to keep our food plates clean, and we can put them in boiling water for sterilization and disinfection.
2. If the food on the table is not finished, do not let the food stay there overnight, so that the food will react with the air to make the food spoil, generally we want to let the food overnight will choose the refrigerator, and we should put it in the refrigerator in time, if necessary, you can choose to lay a plastic wrap, which can help isolate the bacteria in the refrigerator.
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