Now many people are busy due to work, will be from the supermarket inside the market inside to buy a lot of meat, fish to the inside of the refrigerator, the family can not eat meat will choose to put in the refrigerator to freeze, then you know how long to put in the refrigerator in the freezer frozen meat can not be eaten after it? Today, I will give you a little bit of science.
1, meat food can be stored in the refrigerator freezer temperature of about -18 ℃. Can be stored fresh or frozen meat, fish, poultry, can also be stored has been cooked food, storage period of about 3 months. Located in the upper part of the freezer room ice temperature preservation room, the temperature is about 0 ℃, can store fresh meat, fish, shellfish, dairy products and other food, both fresh and will not freeze, can be accessed at any time, the storage period of about three days.
2, in fact, buy back the fresh meat in the freezer, if the preservation method is not appropriate, such as repeated thawing, home refrigerator freezer temperature is not enough, placed too long, etc., the same will deteriorate. Because freezing only temporarily inhibits the activity of the original bacteria in the meat, so that they no longer vigorously reproduce, does not mean that the bacteria no longer continue to grow.
3, especially let the meat through the process of freezing - thawing - and then frozen, it is the same as the growth of bacteria to create opportunities. This is because, when frozen, the ice crystals destroy the cell membrane of the meat, after thawing the nutrients in the cells will flow out, then the reproduction of bacteria will become more crazy, if you let the meat go through repeated freezing and thawing, it will accelerate the deterioration of meat.
The specific preservation time can refer to the frozen meat refrigeration period table prepared for you.
What harm does long-term use of frozen meat cause to the human body?
Triggering food poisoning
When the long-frozen meat is thawed, the temperature rises and the destroyed tissue cells ooze out a lot of protein and water, and the meat becomes a haven for bacteria. Bacteria will decompose the meat protein, fat, produce a large number of harmful to the human body of small molecules decomposition products.
Small molecules such as amines produced by the decomposition of proteins and aldehydes, ketones and peroxides produced by the oxidation of fats. After human consumption is likely to food poisoning, vomiting, nausea, diarrhea and other symptoms.
Accelerating aging
Although freezing can stop the reproduction of bacteria and prevent deterioration, it can't completely stop the oxidation of fat and protein.
When meat is oxidized, the color becomes dark red over time, and the fatty fat begins to yellow and taste fishy. If you eat this kind of meat, the fat oxidation products inside the meat will accelerate the aging of the human body.
Immune system
After the meat is frozen, microorganisms and bacteria and parasites are still inside, and will slowly produce toxins that seep into the meat.
When the meat is frozen, these microorganisms, bacteria and parasites will become very active, and the meat will rot and deteriorate very quickly. Long-term consumption can lower the body's immunity.
It's best not to freeze fresh meat for more than 1 month
Meat has a shelf life storage period of 10-12 months at -18℃. However, due to the different ways of handling meat and freezing conditions, the shelf-life of frozen meat varies greatly.
It is therefore recommended that fresh meat should ideally not be frozen for more than one month, with a maximum of three months.
What's more, home refrigerators are generally not up to the freezing temperature and effect of the freezer, frozen meat for a long time in the freezer will still slowly deteriorate, it is recommended that you buy home frozen meat is best to eat within a week.
Looking at this everyone understands it, what are you waiting for, hurry to open the refrigerator to see if you have "zombie meat"? If so, remember to clean up in time, so as not to cause harm to the body
This is the first time that we have seen the "zombie meat" in the world.