Cold fresh meat, is also called chilled meat, aged meat and icy fresh meat. More accurately, it is named as chilled-aged-meat, which is to be cooled rapidly after slaughtering and strictly in compliance with veterinary quarantine system. The carcass temperature( measured at the center of hind leg) drop down to 0-4°c within 24 hours and will always keep this temperature(0-4°C) in the later procedure of processing, distribution and marketing. Finally, the meat looks moist, feels soft and flexible, taste fresh and tender, because of pre-chilling and strict temperature control within.0-4°C. Chilled meat can be kept seven days at 2-5℃.
Advantage
It overcomes defects and shortcomings of hot meat and frozen meat in quality.
1. Compared with fresh meat, chilled meat is always under low temperature, so that the majority of the microorganisms is inhibited. In addition, the speed of toxin secreting from Clostridium botlinum. and staphylococcus aureus greatly reduced.
2. Compared with frozen meat, the aging procedure of chilled meat is more fully and juicy leakage is less. Therefore, its taste and nutrition are better than frozen meat.
Sense
Chilled meat keeps bright color within the warranty period and its myoglobin won't get browning, which is the same as fresh meat. However, the chilled meat feels more soft than fresh meat. It is because some chemical composition and variety of small molecule compounds accumulate in the aging process at low temperature that significantly improves its taste.
The reason why the price of chilled meat is higher than fresh meat's and frozen meat's is that chilled meat need going though many processes and consuming much energy.
How to identify qualified and unqualified chilled meat? It is difficult to judge from their appearance, because they have only slight difference in the color, smell, elasticity and viscosity.
Only after cooked to meal, you can easily feel that : the qualified chilled meat feels and tastes more soft d tender, the soup looks more pure ,smell and taste better.
Nutritional Value
Chilled meat obeys the meat biochemistry basic rule. Under the appropriate temperature, it finishes 4 steps of rigor mortis, off rigor, softening and aging.In this way, muscle protein is degraded normally and meats get aged and soften, so that it will be beneficial for human digestion. In addition, Without to be thawed before eating can prevent the loss of nutrients.
Frozen meat is to be quickly-frozen blow -35°C after pre-cooling within 24 hours, then it will be carried to the cold room at -18°C. Although frozen meat with fewer bacteria, it needs to be thawed before further processing, which will lead to the loss of nutrition.
Safety Factor
Chilled meat is under strict control from raw materials quarantine, slaughter, fast cooling (chilling) to boning, packaging, transportation, storage and sale, which can effectively prevent the possibility of the contamination. After slaughtering, the chilled meat maintains low temperature at 0-4℃. In this way, it not only reduces the initial number of bacteria but also improve the quality.
However, fresh meat are always processed in the early morning and soon carried to the market without chilling. Although it is also qualified health inspection after slaughtering, fresh meat will be affected by air, insects, vehicles and packaging, and many other pollution in the later processing and retailing procedure. It is because that the fresh meat with high temperature will be easier for breeding bacteria, which influences the safety of food.