China Merchants reserve commodity management center Co., Ltd. recently issued the “notice on matters related to the bidding transaction of central reserve frozen pork in September 2019”, which is 10000 tons of ex warehouse auction transaction, and the transaction volume of each enterprise is no more than 300 tons (including). It is required that the transaction enterprises shall not take the opportunity to hoard, but shall increase the market supply of the purchased frozen pork in an effective way. If the frozen pork is not put in time, its trading qualification will be cancelled once it is verified.
said that pork is one of the most commonly eaten meat. Pork is delicious, nutritious and cheap. Many people will choose pork as food material when cooking at home. Many people sometimes buy pork at one time. If they buy too much pork, they will freeze it in the freezer of the refrigerator and save it for later consumption. Sometimes it may be frozen for months. Many people are worried about the frozen pork and think that it may breed bacteria. So, does pork freeze long meeting germinal? The storage life of
pork in the freezer is generally 4-5 months, no more than half a year, and the best freezing temperature is – 15-16 ℃. Experts said that if this time is exceeded, pork nutrition will be lost, taste worse, in addition, there will be a “psychrophilic fungus” called Listeria, which is not suitable for eating again. When
pork is thawed, the temperature rises and the damaged tissue cells exude a lot of protein and water, so meat becomes a paradise for nourishing bacteria. Bacteria can decompose the protein and fat in meat and produce a large number of small molecular substances harmful to human body. For example, small molecule amines produced by protein decomposition, aldehydes, ketones and peroxides produced by fat oxidation. People are likely to eat food poisoning, vomiting, nausea, diarrhea and other symptoms. Although
freezing can prevent bacterial reproduction and deterioration, it can not completely prevent the oxidation of fat and protein. When the meat is oxidized, the color will become dark red, the fat of fat meat will turn yellow, and the taste will become fishy. If you eat this kind of meat, fat oxidation products in the meat will accelerate the aging of the human body. After the
meat is frozen, the microorganisms, bacteria and parasites in the meat are still in it, and toxins will slowly be produced and infiltrated into the meat. When meat freezes, these microbes, bacteria and parasites become very active, and the meat spoils quickly. Long term consumption will reduce human immunity.
people think that fresh pork will be better. In fact, there are four advantages to eating frozen meat.
1. Frozen meat is more hygienic:
from the perspective of hygiene, there are various bacteria in the newly slaughtered meat, and there may even be some viruses. For example, the swine yellow gall virus is hidden in the bone blood and muscle; and the bacteria in the frozen meat have been discharged or frozen to death.
2. Frozen meat is fresher:
pigs enter the process of quick freezing within 2-3 hours after slaughtering. After thawing for more than one hour at home, the exposure time of meat in normal temperature is only about four or five hours. Fresh meat is generally transported from the slaughterhouse at more than 4 a.m. and sold on the meat stalls. The fastest time to get to the public’s table is more than 11:00 p.m., and the exposure time of meat in room temperature and air is more than 6 Hours.
3. Frozen meat is more delicious:
in terms of meat quality, fresh meat has a heavy sour taste and a lot of miscellaneous juices; however, the frozen meat is treated with acid drainage before storage, and the water and dirty blood in the body are basically removed, so the meat is more delicious. But the refrigerator at home can’t keep frozen meat fresh for a long time. Because the temperature of frozen meat out of the warehouse is about – 18 ℃, and the refrigeration capacity of household refrigerator is limited, generally only – 4 ℃ – 5 ℃. Frozen meat will slowly deteriorate after being put in the freezer for a long time. Therefore, experts suggest that the best time to buy home frozen meat in a week to eat.
4. Frozen meat has nutrition:
frozen meat and fresh meat, there is no difference in nutrition, but frozen meat needs to be thawed when eating, and improper thawing method will cause the loss of nutrients. It should be noted that repeated thawing and freezing will destroy the nutrients in frozen meat, resulting in the loss of nutrients such as the most nutritious cytoplasmic liquid in the meat with water. The nutritional value of frozen meat is not lower than that of fresh meat as long as it is thawed correctly and eaten reasonably.