hg440044.com Overnight food preservation tips are public, this one!

Overnight food preservation tips are public, this one!

Source of information: Time: 2020-02-21 02:43:17

Millennium Tongzhou vitality north stream

It is common in our lives to leave meals overnight. Although Weibo, which was rumored to be "3.6 times higher risk of gastric cancer caused by overnight meals", has been circulated on the Internet, experts have said that there is no scientific information certification, but the serious loss of nutrients in overnight dishes is a fact, and regular food is harmful to the body. In fact, whether the leftovers can be eaten depends on what is leftover, how long is leftover, under what conditions to store, and what are the conditions for reheating? Gourmet King has prepared the following materials carefully for everyone, this one, no branch, what are you waiting for ...
Fish, meat, soy products
Fish, meat and soy products only have the problem of microbial reproduction, and the problem of nitrite is basically not considered. Soy products are more prone to spoilage than fish, meat, and soy products. Their common problem is the possibility of breeding dangerous pathogens, such as the horrific Clostridium botulinum. This bacterium can produce the world's first poison, "botox," which is 10,000 times more toxic than potassium cyanide. Toxins can be destroyed by heating above 100 degrees for several minutes, but they are very dangerous if they are not heat-permeable.
Vegetables contain high levels of nitrite, which may gradually change to toxic nitrite due to bacterial activity during storage. However, if left alone in the refrigerator overnight, this rise in nitrite is far from causing food safety accidents. In any case, vegetables are not recommended for more than 24 hours, so be extra careful. If you must choose vegetables with rice, choose as few stem and leafy vegetables as possible, and choose melon vegetables. Not suitable for long-term heating, you can use steamer to steam, less nutrition loss.
How to take meals
Overnight dishes not to be considered
【Silver Fungus】
Tremella soup is an advanced nutritional supplement, but overnight, the nutritional content will be reduced and harmful ingredients will be produced. Because both the Tremella fuciformis cultivated indoors and the Tremella fuciformis cultivated in the field of Tochigi contain more nitrates. After being cooked for a long time, the nitrate will be reduced to nitrite by the decomposition of bacteria.
When people drink this soup, nitrous acid naturally enters the blood circulation, and the red blood cells in the blood have hemoglobin, which can carry a large amount of oxygen for the body's needs. But nitrous acid counteracts the oxidation of normal hemoglobin into methemoglobin in the human body, losing the ability to carry oxygen, causing the human body to lack normal hematopoietic function!
If the eggs are not fully cooked, then the unripe yolks are eaten overnight. Under improper storage, nutritional things can easily breed bacteria, causing gastrointestinal upset and flatulence. However, if the eggs are fully cooked and stored properly in a low temperature seal, there is generally no problem.
Tea eggs are usually boiled twice, the first time is cooked, the egg shell is broken, and the tea and other accessories are added to cook, so the tea eggs must be cooked. But those half-boiled eggs, whose yolks are semi-liquid, cannot be eaten overnight.
Fish and seafood are prone to produce protein degradation products overnight, which can damage liver and kidney function. Green leafy vegetables contain different amounts of nitrate. Excessive cooking or prolonged cooking time will not only cause the vegetables to yellow and taste, but also nitrate will be reduced by bacteria to toxic nitrite, which has a carcinogenic effect.
【Spicy taste】
Many people will put unfinished lochi in the refrigerator for "overnight". From a food safety point of view, this is unhygienic, and it is best not to eat overnight bads if possible. Even food in the refrigerator is not absolutely "insured." The refrigerator is prone to mold and cold bacteria.
Can bring your own meals
There are rice, beef, soy products, various non-green leafy vegetables, fruits, yogurt, etc.
To ensure sufficient energy for lunch, foods containing protein, vitamins and minerals are essential. Among vegetables, loofah, coriander, etc. contain more cellulose. In addition, you can choose celery, mushrooms, radishes and so on. The vegetables to be brought are cooked when cooked for six to seven, in order to prevent further damage to their nutritional content when microwave heating is performed the next day. Amaranth try to choose less fat, such as beef, chicken and so on. After cooking, cover immediately after cooling and store in a 4 ° C refrigerator. After taking it to the office the next day, put it in the refrigerator immediately, and at lunch, fully heat it in the microwave and eat.
Overnight meal storage tips
Regardless of the type of food, the longer it is kept at room temperature and the later it is placed in the refrigerator, the larger the "base" of microorganisms and the less safe it is after storage.
The speed of cooling into the refrigerator is also important. If the refrigerator is too full, the cooling effect is insufficient, or the size of the dishes is too large, the air conditioning is slow in, and it is difficult to lower the temperature of the dishes for a long time, it will also bring safety risks.
[Handling of overnight rice]
The leftover rice is apt to cause food poisoning. Most of the time, the rice does not look abnormal, nor is it cyanotic or sour, but it has a bad mouth, is slightly sticky, or has a slight odor. It must be thoroughly heated and eaten. If leftovers should be left loose and placed in a ventilated, cool and clean place to avoid contamination. When the temperature of leftovers reaches room temperature, refrigerate in the refrigerator. The storage time of leftovers should be no meals. Breakfast is for lunch and dinner is for lunch. It should be shortened within 5-6 hours. Be sure to thoroughly heat leftovers before eating, and you must heat up before eating. Do not eat leftovers from hot water or vegetable soup. Do not pour leftovers into new rice to avoid incomplete heating.
[Handling of overnight soup]
Everyone likes to drink soup, but it is recommended not to put the seasoning in one go. Do not put seasonings such as salt in the unfinished soup base. Cook the soup and use a clean spoon to spoon out the drink that day. If you ca n’t finish drinking, it is best to use a crock pot to store it in the refrigerator. Because leftover soup is stored in aluminum or stainless steel pots for a long time, it is prone to chemical reactions and should be placed in glass or ceramic ware.
[Handling of overnight meals]
The leftovers are best packed. Placing large amounts of food in large containers and cooling the food over a longer period of time will increase the risk of bacterial growth. It is best to divide the food into several portions and place it in a shallow container to speed up the heat dissipation of the food.
Cooked food and raw food must be strictly separated. Because refrigerators have limited space, many people place raw food such as fresh vegetables directly next to cooked food, which can easily cause cross infection of bacteria. Do not store cooked food in the refrigerator for more than 3 days. If you suspect that the food has deteriorated, discard it as soon as possible.
Be sure to heat it thoroughly. Heat the dish as a whole to 100 degrees and keep boiling for more than 3 minutes.
[Transformation of overnight dishes]
People are eager to eat new dishes; but eating the same dishes over and over again is obviously unpleasant. In many families, the housewife gains weight because of leftovers and loses her slender body, because her husband and children disdain leftovers. In fact, in addition to vegetables, it is not difficult to renovate fish food leftovers. It is nothing more than the three major techniques of changing knives, adding ingredients, and changing seasoning.
For example, if there are some large pieces of meat left, and there is too little to make a single dish, you can cut it into small pieces and add some flavored vegetables to make vegetable fried meat slices. For example, adding cilantro, onion, celery, etc. can make the fried meat pieces fragrant and attractive, and the family will certainly welcome as new dishes. For another example, if the meat was originally braised, you can consider adding curry powder and potato carrots to transform it into curry flavor. You can also transform leftovers into soups, such as leftover ribs with vegetables and noodles, to make vegetable ribs soup noodles; leftover scrambled eggs with tomatoes, fungus, and noodle soup, and transform into tomato miso soup and the like.
In this way, the leftovers will not be wasted. When reheated, they will be cooked "through" enough, safety will be guaranteed, and the family will enjoy it.
[Avoid repeated heating]
It is important to note that the dish should never be heated repeatedly. If you know you can't finish the second meal of fish, just heat it halfway.
If the meat is relatively large, be sure to cook and steam it longer, or chop the meat and reheat it. Soy products are more prone to spoilage than meat, so you need to be more careful when heating. It is not a pity to cook for a few more minutes, because the vitamin content in tofu is very low, and the protein, calcium, and magnesium it contains are not afraid of heat, and heating will not significantly reduce the nutritional value.
The rest is still placed deep in the refrigerator. Even some cooked foods and soy products can be frozen into small boxes directly into the freezer.

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