Why should the food cool and put it in the fridge?
Hot stuff should not be put into the refrigerator for several reasons.1, the refrigerator should be maintained about 4 degrees, so that the refrigerator can store food for a long time. When you put hot things in the refrigerator, the temperature in the fridge is high. Then you can't reach the condition that the refrigerator should keep about 4 degrees inside. In this way, the food stored in the refrigerator is liable to go bad.
3 because the temperature of the surface of the hot object is down, but the temperature inside it is small, it will breed harmful substances!4, hot food will raise the temperature around, refrigerators have to operate at a high power. And will produce water vapor, freezing on the cold plate, easy to freeze, food in cold contraction will suck into the refrigerator smell
2 when you put hot things in the refrigerator, you bring some heat into the inner refrigerator, and the refrigerator needs to work to lower the temperature. This requires power consumption and also increases the burden on the refrigerator.