The more inflamed and hot

weather, a variety of food safety problems have emerged. Among them, whether the overnight food can be eaten or not and whether it will cause cancer is controversial and has been troubling us for many years. Which statement is correct?

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next, I will take you to uncover the secret of “overnight food”.

is an overnight dish? According to the literal understanding of

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, people will think that the dishes that are separated overnight are the overnight dishes. In fact, the overnight dishes do not refer to the dishes that have been put overnight. However, as long as they are kept for more than 5-8 hours, they are considered as overnight dishes.

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many families like to cook a lot of dishes, but they can’t finish them. In order to avoid waste, they just want to save them for tomorrow. If they heat the dishes the next day, they can have another meal. Can they eat the overnight dishes? Can

overnight food? Whether

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can be eaten or not depends on the type, storage mode, storage location and duration of overnight dishes.

many people think that there is excessive nitrite in overnight dishes, which will cause cancer, so they can’t eat them. Nitrite does exist in overnight dishes, but its dose varies with storage time and storage location. If the

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are stored properly, the overnight dishes will not cause cancer, because the dosage of nitrite is only higher than usual, and it does not exceed the standard. In fact, nitrite is very common in our daily life. In a reasonable and safe dose, nitrite is allowed to be added to some pickled food. It is worth noting that although it can be metabolized by human body, excessive nitrite may cause poisoning and even death. Under normal circumstances, nitrite up to 0.3g ~ 0.5g will cause poisoning, 3G will lead to death.

Lao Wei and his mother in Luoyuan County, Fuzhou, live in the countryside. They don’t have refrigerators and are afraid of waste. If they can’t finish eating, they will save the next hot meal to eat.

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due to long-term consumption of improperly stored overnight vegetables, mother and Lao Wei suddenly developed abdominal pain, nausea, vomiting, high fever and other symptoms. After shock, they were sent to the hospital for rescue. Wei’s mother finally died of ineffective rescue, and Lao Wei suffered from multiple organ failure.

therefore, overnight dishes must be properly stored, and do not eat overnight dishes for a long time, so as to avoid damage to the body. The younger generation of

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like to bring their own meals to work, but they can’t avoid overnight storage when cooking. How should the overnight dishes be stored so as not to produce excessive nitrite?

bring food to work, how to eat overnight food to be healthy?

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more and more office workers are tired of fast food and takeout, and they want to eat more healthily and choose their own meals. Due to the problem of time, the meals are usually prepared the night before.

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are prepared after one night’s storage. If you eat them the next day, you should pay attention to the following items:

should be stored in the refrigerator below 4 ℃ and sealed with fresh-keeping film or bag; it is better to store meat and vegetables separately to avoid cross contamination of bacteria, prevent cross contamination of food, and affect the taste of food; before eating, it should be fully heated.

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in addition, what dishes should office workers choose to make to reduce nitrite production?

1. Vegetables:

usually have higher nitrate content in stem and leaf vegetables, because the chemical fertilizer applied is nitrogen fertilizer, which is easy to be polluted by nitrate; while melon vegetables are lower, rhizomes and cauliflower are in the middle.

so office workers want to reduce the production of nitrite, it is recommended to choose cauliflower or melon vegetables, such as cabbage, spinach, broccoli, etc.

2. Meat: the nitrate content of

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meat is low, and there is little change after storage. It can be safely prepared and stored, such as pork, chicken breast, beef, etc.

3. Eggs:

eggs are rich in nutrition, but the half cooked eggs are easy to breed bacteria when stored in the refrigerator. It is suggested that the eggs should be cooked before storage.

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in addition to the above three kinds of food that can be used as overnight food, but also pay attention to Auricularia, tremella fuciformis, mushrooms, it is best not to eat overnight. Because the fungus is easy to remain nitrate, and it will produce a lot of nitrite if it is stored for a long time, so it is recommended to eat it after cooking, not overnight.

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in a word, overnight vegetables will not cause cancer in the right way. However, after the overnight vegetables are stored for a period of time, the nutrients will be lost, the content of nitrite will also be increased in different degrees, at the same time, bacteria will breed, and the taste of the dishes will become worse. Therefore, it is recommended that we eat less overnight vegetables to reduce the harm to the body. Interaction between

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: which overnight dishes can’t be eaten?

reference material

[1] scary! Can overnight food cause cancer? How long does it stay overnight? It’s not too late to see 》Do you know about “one night’s fast food” in China? China’s youth network.2014-10-17

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