The mainland has a good character of thrift and thrift from ancient times to the present, especially now that the refrigerator has been invented, it has also reduced the waste of food, and the remaining meals will be stored in the refrigerator, and it is very convenient to eat it directly next time.
But now people's awareness of health care is enhanced, some people are inevitably a little sensitive to the word "overnight", then, some people ask: often shelved in the refrigerator leftovers, the next day can still eat? Next, let's take a look at the overnight "terrier"!
Overnight water, overnight tea, overnight dishes, overnight meat, which can not be eaten? The doctor told the truth
Overnight water
Boil tap water for 3 to 5 minutes, and the content of harmful substances such as nitrites and chlorides is the lowest, which is most suitable for people to drink. Drink less overnight boiled water: Nitrite can form carcinogenic nitrosamines in the human body. A large number of studies have found that the content of nitrite in boiling water is higher than that in raw water. Moreover, boiling water that has been boiled for too long or more than 24 hours repeatedly increases the content of nitrite significantly. After 24 hours of boiling water, the nitrite content is 1.3 times that of the boiling water. Mainland residents have the habit of drinking boiling water, it is best to drink it now or only drink the boiling water of the day, and do not drink boiling water that has been boiled for too long.
Overnight tea
Overnight tea can not be drunk Overnight tea due to too long time, most of the vitamins have been lost, and the protein, sugar, etc. in the tea soup will become the nourishment for bacteria and mold reproduction, so people usually think that overnight tea can not be drunk. Tea can generally stay in the human body for about 3 hours, while strong tea stays longer, so that theophylline accumulates too much in the human body, resulting in neurological dysfunction. Tea for a long time, not only will lose vitamins and other nutrients, and easy to deteriorate, and even the tannic acid in the tea will become a very irritating oxide, easy to hurt the spleen and stomach, especially in the summer, will cause gastrointestinal inflammation.
Overnight dish
Because some green leafy vegetables contain more nitrates, if they are left for too long after cooking, under the decomposition of bacteria, nitrates will be reduced to nitrites, which have carcinogenic effects and cannot be removed by heating.
Usually, stem and leaf vegetables have the highest nitrate content, melon vegetables are slightly lower, and rhizomes and cauliflower are centered. Therefore, if you buy different kinds of vegetables at the same time, you should eat stems and leaves first, such as Chinese cabbage, spinach, etc. If you are ready to cook more dishes and eat them hot the next day, you should try to make fewer stem and leaf vegetables and choose melon vegetables.
Overnight meat
Relatively speaking, overnight meat can continue to be eaten, but it must be well stored, especially in the hot summer hot season, it is recommended to buy less in the summer, it is best to eat it at one time, if it is a situation in winter, the temperature is very low, you can put it away the next day and then eat, but the time should not be too long.
It is recommended that for bulk brine to be eaten on the same day, not overnight. From a food safety point of view, this is unhygienic, and it is best not to eat overnight bad goods if possible. Even food in the refrigerator is not absolutely "safe". The refrigerator is prone to breed mold, as well as cold bacteria and so on.
In fact, whether overnight food can be eaten or not depends on the storage conditions. For example, leftovers, soups, cold vegetables, and brines at room temperature overnight are best not to eat, because it is easy to exceed the standard of bacteria, causing diarrhea and other diseases. The general recommendation is that leftovers should be stored at room temperature for no more than 4 hours, and should not exceed 2 hours when the temperature is high. My advice is to pack leftovers in the refrigerator when there is still heat, although it costs a little more electricity, but it is safer. This is because bacteria multiply the fastest at 20 °C to 30 °C, so it is necessary to cool down to refrigeration conditions as soon as possible.
Overnight meals, overnight dishes, overnight water... What overnight foods can't be eaten? In addition, leftovers need to be thoroughly heated when they are eaten, and they should not be stored in the refrigerator for too long. For cold mixed vegetables, it is generally recommended to eat how much to do, and throw away the leftovers to avoid food safety risks.
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