Many people think that a refrigerator is like a safe. The low temperature of the refrigerator can inhibit the growth of bacteria, and food is safe in it. But facts often differ greatly from our perceptions. According to a sample survey by the health department, cross-infection of bacteria is very serious, especially in the lower layer where raw meat is stored, and the pass rate is almost zero. Most refrigerators are contaminated with E. coli. Raw meat and cooked foods are stored in an air-circulating space. Even if they are stored in layers, they can cross-infect. If you take them out directly, it can easily cause food poisoning such as diarrhea and vomiting.
Causes of bacterial cross infection
1. Foreign pollution source
During the process of slaughtering, transportation, and sales of raw meat, due to the complex environment, there will be a large number of bacteria and viruses remaining on the surface. Due to humidity and temperature, which are suitable for the propagation of germs, a large number of bacteria will grow on the surface of raw meat.
After the raw meat carrying a large amount of bacteria is put into the refrigerator, a large number of bacteria will walk into the refrigerator, causing bacterial migration, and the bacteria will fall on other food to continue to multiply and migrate.
2. Improper refrigerator design increases pollution risk
Due to the air circulation inside the refrigerator, there is no partition of food storage, and bacteria move freely. Each kind of food put in the refrigerator carries different germs, and each kind of germs will migrate to other foods through the air circulation in the refrigerator. In the end, all food in the refrigerator will be covered with a variety of germs.
Many refrigerator designs do not have the concept of partitioned storage. Raw and cooked foods are placed in the same space. It is a common occurrence that heavy flavors and foods that easily absorb odors are placed in the same space. The entire refrigerating area of the refrigerator is connected, and there is no effective limit on bacteria and odor. Although the temperature of the freezer area is lower, foods such as quick-frozen dumplings and raw meat and dried fish carry food together, which is prone to cross infection and greatly increases The risk of food contamination.
What kind of refrigerator can effectively avoid bacterial cross infection
1. Open-type partition storage refrigerator
Not all side-by-side refrigerators have a partitioned storage effect, many are just pseudo-zoned. For example, the following refrigerator with open doors is connected to the left and right, it can not play the role of partition storage at all, and it has no meaning to open the door.
The true partitioned refrigerator with open doors should be separated by the left and right doors, and the two parts operate independently so that the food will not be cross-infected.
Fruits, snacks, drinks and other ready-to-eat foods without cooking can be stored on the left. Skin care products such as masks can also be stored. These foods generally have less bacteria and can be eaten without washing with water. Foods to be cooked are placed on the right, cooked foods are placed on top, and raw meats are placed on the bottom, which can avoid cross infection of bacteria in the food in the refrigerator to the greatest extent.
2. Reasonably functioning refrigerator
The left and right independent partitions cannot solve all the problems. Each partition of the refrigerator should also have an independent storage layer to reduce the smell and the spread of bacteria.
The freezer compartment of this refrigerator does not have any partitions, and food and food are unsealed and quick-frozen food is easily contaminated by bacteria or has odor.
Professional refrigerators should take into account the importance of functional partitions, and plan in advance how the food kitchen will be convenient for consumers.
Although the refrigerator can create a low-temperature environment, the fresh-keeping effect is unsatisfactory. Rottenness, discoloration, and odor ... a variety of problems have followed. The black technology proposed by Hisense Refrigerator-vacuum preservation technology, effectively solves the problem of deterioration of ingredients and keeps fresh and locks nutrition.
The current competition in the refrigerator industry is becoming increasingly fierce, and the battle for products has shifted to a value war for product technology upgrade development. With the entry of vacuum preservation technology, the technological competition with the theme of preservation in mainstream refrigerator brands will be further upgraded, making Hisense Refrigerator a pioneer in this wave of industry.
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Source: Wanweijia Power Grid