Now, the refrigerator has become one of the necessary equipment for many families and businesses. In order to help you better use these refrigerators, let's share five misconceptions about the use of refrigerators.
1, raw food and cooked food together
Related experts explained that foods should not be cooked and mixed together so that food hygiene can be maintained. According to the time and temperature of the food, we need to make use of the size of the space in the refrigerator. Do not put the food directly on the evaporator. It needs to be put in the container for cooking, and the side is frozen on the evaporator. It is not convenient to take out.
Any food should be stored in the refrigerator and should be eaten as much as possible. If stored too long, it will not only affect the delicacy of food, but also produce peculiar smell, and then pollute other foods, especially leftovers and bananas, apples and other fruits.
In addition, all kinds of foods in the fridge should be classified. Raw food and cooked food should also be separated from each other to prevent cross contamination. It is best to wrap freshness food before using it to prevent food from freezing and drying. The fruit should be scrubbed and stored in the refrigerator. Food storage should not be too much. The difference between the surface and inner temperature of stored food is easy to deteriorate.
2, cold storage can "sterilize"
The related experts point out: the pollution of the bacteria in the refrigerator used in our family is very serious. There are a lot of people every year because of eating food directly from the refrigerator, diarrhea, fever, vomiting and other symptoms.
The thermophilic bacteria can survive at 0~5 or even lower temperatures, while unprocessed foods, such as fresh vegetables and fruits, especially meat, poultry, eggs and seafood, have bacteria. Even processed foods, such as sauce brine, barbecue, pastry, pastry, fish and other foods, are also bacteria.
Even if you store refrigerators, you can't play the role of sterilizing. The low temperatures of refrigerators do not freeze bacteria to death, but inhibit their reproduction, bacteria are still alive, and will soon grow and reproduce at room temperature.
Experts say that the bacteria and toxins in the refrigerator are varied, such as milk (milk, cheese, etc.), leftover food, fish, meat, eggs, vegetables and fruits, etc. all may be contaminated by bacteria and produce toxins. If the food in the refrigerator is stacked in a mess, the probability of cross contamination of food is greatly increased and the risk of food poisoning is increased. Therefore, the leftovers should be fully heated before they are removed from the fridge. Regular cleaning of refrigerators, especially refrigerator doors and seals, is also necessary.
3, wrap the preservative film, more bacteria
The experts explained: "the watermelon is not enough to be stored in the refrigerator after the watermelon is cut, so it will produce a lot of bacteria, so it's better to put it in the refrigerator." For this statement, the relevant experts believe that it is not correct: "no matter whether the bacteria are not used, there will be more bacteria without using plastic wrap."
Experts explain that if you put the watermelon in a fridge directly, it will increase its chances of infecting other foods in the fridge. In addition, sealed with fresh-keeping film without bacteria pollution can also reduce the water loss of watermelon cut section and play a role of freshness preservation.
Experts say the food is not used in ordinary rubber bags. In the first place, ordinary plastic bags can not seal food. Secondly, ethyl hexyl amine (DEHA) in its components is easy to precipitate and cause cancer. It is recommended to use PC, PE, PP and toughened glass and other safety materials. The general temperature range is -20 to 120 C, which can store refrigerators or microwave ovens.
If you want to keep your freshness better, the best choice is to keep the box fresh: "freshness keeping and freshness keeping of the fresh-keeping film and fresh-keeping bag are not good enough to avoid the smell of food. And the qualified preservative container basically does not contain harmful substances, and can cut off the flow of gas and water loss to a certain extent, and keep the food fresh for a long time.
4. The better the refrigerator is to keep food at low temperature.
Experts explain: different foods have their own suitable temperature for storage: if meat (pork, beef, etc.) should be preserved for a long time, they can be placed at -18 degrees centigrade. If only two or three days are stored, they can be placed at -2 ~ 5 degrees centigrade.
Experts cautioned: "not all foods are stored at a lower temperature, the better. This is a misunderstanding, especially in fruits and vegetables, and low temperature will destroy its nutritional structure."
The best temperature for fruit storage, such as potato, should be 2~4 C; the suitable temperature for cucumber, eggplant, tomato and so on is 7~10 C. Banana, mango, lychee, tomato, cucumber and bread should not be kept in the fridge.
All foods should be cleaned before they are put into the fridge, remove mud, residual leaves, etc. All kinds of food are packed in fresh-keeping bags and fresh-keeping boxes, and stored in accordance with the preservation conditions of all kinds of food.
5. The lower the temperature in the refrigerator, the better.
In summer, the refrigerator in the home frosted quickly, and the condensation of the trachea and the effect of refrigeration were not good enough, even the food was easily deteriorated.
Experts remind you that the low temperature in the refrigerator in the summer can easily lead to excessive temperature difference inside and outside the refrigerator, which not only increases the load on the refrigerator, but also increases the electricity consumption. Therefore, it is enough to keep the refrigerator temperature in the middle gear in summer. Foods that need to be stored for two days should be stored at -5 C to 6 C, and the food that needs to be kept for a week can be placed at temperatures around -12 C.
At this time, you need, first, when the frost in the fridge exceeds 5 millimeters, defrost should be done; the waste in the fridge should be cleaned regularly.