Bei, tell me about the refrigerator.

2. Take out all the stored items.

3, warm water and cleaning agent to clean the inside.

4, do a good job in external health, remove the dust on the compressor surface and pipeline,

5. Clean the sewage and dirt on the water-saving tray.

6. Open the refrigerator door to dry.

7. Cover the refrigerator in a dry and ventilated place with the original plastic film and carton, which can prolong the storage time of food. In the final analysis, it is a "cold" word. According to the basic principle of chemistry, if the temperature decreases, the speed of chemical reaction will slow down. For example, the degradation of vitamins, the oxidation of fat and the decomposition of flavor substances will all proceed slowly at low temperature. Similarly, the growth of microorganisms will be inhibited by cold. Generally speaking, most bacteria like the temperature from room temperature to body temperature. At 4℃, the growth rate of most bacteria is inhibited, so food will not rot as easily as at room temperature. However, bacteria don't die in a cold room, but multiply slowly. At this time, some cold-tolerant bacteria can grow slowly, and mold can move at the temperature of the refrigerator, so steamed bread and food still need to be fully heated before eating.

Honey, tea and milk powder should not be put in the refrigerator.

Some foods in the refrigerator will shorten the shelf life; Some foods don't need to be kept in the refrigerator, so they can be kept for a long time. Specifically, biscuits, candy, honey, pickles, yellow sauce, preserved fruit, powdered food, dry goods and so on. You don't need to put it in the refrigerator. They are either extremely low in water content and microorganisms cannot reproduce; Or the concentration of sugar and salt is too high, the osmotic pressure is very high, and there is little free water, so that microorganisms cannot reproduce. It wastes electricity and takes up space in the refrigerator.

When honey is put into the refrigerator, it will crystallize out glucose. This change does not affect the safety of honey, nor its nutritional value, but only affects the uniformity of taste. Some people think that honey is corrupt, throw away a whole bottle of honey and waste food after wasting electricity. What a pity!

Dry goods such as tea and milk powder are put in the refrigerator. If the seal is not tight, the taste and moisture in the refrigerator will enter the food, which will not only affect the flavor, but also easily lead to mildew.

If chocolate is kept in the refrigerator for a long time, it is easy to change the crystal form of fat crystals. Although it will not deteriorate, the taste will gradually become rough, the surface will frost, and it will no longer be delicate and uniform. In fact, chocolate is suitable for room temperature ranging from 10 degrees Celsius to 20 degrees Celsius.

Some fruits Some fruits can't be put into the refrigerator, such as tropical fruits such as mangoes and bananas, which are suitable for storage at around 12℃, and are generally placed in a cool place at room temperature. If you put it in the refrigerator, it will be destroyed by cold air and deteriorate in advance.

Steamed bread, flower rolls, bread and other starchy foods.

If you can't finish a meal or two, put it at room temperature. Putting it in the refrigerator will accelerate the drying and hardening of these foods. If you want to store it for more than 3 days, you'd better wrap it and put it in the freezer. Take it out and thaw it in the microwave when eating 1 ~ 2 minutes. The taste is as fresh as ever.

Some foods can be temporarily put in the refrigerator, such as various drinks and beer. Actually, they don't have to be kept in the refrigerator. They are put in the refrigerator just to lower the temperature, and the taste is even colder. It may be stored at normal temperature on weekdays and put in the refrigerator half a day before drinking.

Yogurt cooked meat products must be put in the refrigerator.

Except leftovers and raw fish and meat, most vegetables need to be put in the refrigerator, especially green leafy vegetables, yogurt and sterilized milk, all kinds of cooked meat products and bean products. Most products are better stored at 0℃ ~ 1℃ than at 4℃ ~ 6℃, such as most vegetables and fruits in the north. However, considering the energy consumption, usually only frozen meat is placed between-1℃ and 1℃.

The storage time of sterilized milk in the refrigerator should not exceed 48 hours.

Vegetables, especially green leafy vegetables, will gradually lose their nutrients and nitrite will increase rapidly when stored at room temperature (unfortunately, supermarkets usually sell vegetables at room temperature). Immediately after purchase, it should be wrapped in plastic wrap or plastic bag and put into the refrigerator. Some people wrap the newspaper first and then put it in a plastic bag, which has a better moisturizing effect.

When yogurt is stored at room temperature, the lactic acid bacteria in it will die quickly, lose some health care value, and easily make the taste too sour.

Sterilized milk stored at room temperature will soon exceed the standard; Store in the refrigerator and drink within 48 hours, preferably within a few hours after opening.