"A few years ago in the army, with the squad leader to pull the cold storage of the army to supply pork, when the big guy that called a hard work, until I saw a piece of pork on the top of a chapter is 1978, I and the squad leader that meal tacitly chose to eat vegetables, but then came to see that the big guys did not have anything to do to eat meat together" Xiao Fang retired for a long time, every time he ate with his comrades-in-arms, he could think of this file, and after the tea and dinner, it also became the talk of the big guys.
"Alas, you boy, it seems that we are poor and have benefits, or the vegetables and meat in the refrigerator generally do not exceed three days, and they are eaten clean by three times and five divided by two~" Hanako also quipped.
Many people take the refrigerator at home as a "disinfection cabinet", thinking that storing food in the refrigerator is reassuring and safe, but do not know that the refrigerator stores food for a long time and does not clean, it is easy to breed bacteria, so how long is the normal vegetables and meat in the refrigerator suitable? Fan Zhihong, associate professor at the College of Food Science and Nutritional Engineering of China Agricultural University, brought us the answer in an interview with Life Times.
<h1 class="pgc-h-arrow-right" data-track="4" > forty percent of families' frozen meat is stored for half a year, and a table reveals the shelf life of "frozen meat"</h1>
The "Life Times" has launched a survey, and found that 42.2% of the meat stored in their refrigerators for more than half a year, and even 5.5% stored for more than four or five years.
So, what is the shelf life of "frozen meat" in the family? Fan Zhihong explained: Red meats such as pork, beef, etc., can be stored for about 10 to 12 months, and beef will be stored longer than pork and lamb, and lean meat will be longer than fat meat.
Poultry meat, such as chicken and duck, has a shorter cryopreservation time, ranging from 8 to 10 months. Seafood and river fresh such as fish, shrimp, shellfish, etc., the freezing shelf life will be shorter, generally half a year, but it is best to eat within 4 months, beyond this time, it is easy to become what everyone calls "zombie meat".
Although frozen meat can be eaten, it will still have a certain impact on the body, and some frozen meat is abnormal, so it is best not to eat it.
<h1 class="pgc-h-arrow-right" data-track="4" > eat frozen meat for a long time, and your body does not agree</h1>
In general, we can judge whether these meats are still edible by observing the common deterioration of these meats.
1. Sticky. In the early stage of the meat into the refrigerator cooling too slow, or refrigerator power outage and other reasons, so that the frozen meat melted, the meat surface will appear mucus-like substances, with the hand touch has a sticky and slippery feeling, such meat is not suitable for eating.
2. Moldy. Some low-temperature resistant molds can multiply under the refrigerator, and small mold spots will appear in contaminated pieces of meat, so that the meat cannot be eaten.
3. Dry up. Meat frozen for too long, too much water dispersion will become dry, such meat taste and nutrition are poor, serious words will be like wood slag, has lost its edible value.
4. Discoloration. Some bacteria will produce pigments, will appear on the surface of the meat block a variety of abnormal colors, and even appear phosphorescence, so that the meat that is multiplied by bacteria has often spoiled and is not suitable for consumption.
Fan Zhihong suggests that when eating meat foods, try to choose fresh, because frozen meat may cause the following effects on the body:
1. Oxidation reaction accelerates aging
Meat bacteria in the frozen state cannot multiply in large quantities, but the oxidation of fats and proteins cannot be completely avoided, nor can it prevent the deterioration of meat quality. Under the oxidation reaction of meat with a long freezing time, the lean meat will gradually change from red to brown, and the fat meat will gradually turn yellow, which will produce fat oxidation products that accelerate human aging.
2, vitamin loss is large
Meat that has been frozen for a long time, after the protein is oxidized, the essential amino acids will break down. The longer it is frozen, the more vitamins are lost in the meat, especially B vitamins.
3. The taste is hard
Long-term freezing will make the mouth of the meat feel a great impact, the moisture in the meat will be sublimated when frozen, when thawing, under the action of osmotic pressure, the remaining water in the cells of the meat will flow out, such meat will lose its umami taste, the taste will become hard and woody.
For some reasons, some people can't buy fresh meat every day, they can only buy more at once, so how should this be stored?
<h1 class="pgc-h-arrow-right" data-track="4" > refrigerator meat storage is exquisite</h1>
1. Choose fresh meat
The meat bought is first of all fresh, such as pork, fresh pork fat is white, lean meat is red and shiny, hand touch non-stick hand pressure after the depression can be quickly restored.
2. Cut into small pieces while storing
Large pieces of meat are best cut into small pieces for preservation, easy to use, not easy to skewer, how much to use to thaw as much, to avoid repeated freezing and thawing, repeated thawing will make the meat more likely to breed bacteria.
3. Don't be upset if you throw it away after the shelf life
Expired meat has a certain safety risk, such meat may cause damage to health, in order to save the consumption of such meat, it is not cost-effective.
4. Choose a regular purchase channel
When buying meat and meat products, it is best to choose fresh meat from formal channels, do not go to mobile vendors and unqualified restaurants to buy, may buy unqualified meat, in some places in order to reduce costs, will buy expired and spoiled meat with spices heavy flavor cooking, making it difficult to eat odor.
Just as the so-called disease from the mouth, frozen time is too long meat, before cooking to see clearly, it is best to buy and eat now, every New Year's Festival meat is too much, if you can't finish eating for a while, you may wish to share it with friends and family.
#39 Health SuperGroup ##清风计划 #
Resources:
[1] In light of this "meat shelf life schedule", hurry home to clean up the "zombie meat" in the refrigerator.Life Times.2018-06-29
[2] How long does it take for the meat in the refrigerator to freeze and not be eaten? A table sums it up clearly. Life Times.2018-05-03
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