Many people think that putting hot food directly in the refrigerator is not good for the refrigerator, so they always wait until cool. In fact, hot meals and dishes in the refrigerator will briefly increase the temperature of the refrigerator, but the refrigerator cold room is equipped with a temperature sensor, the sensor senses the temperature rise, will immediately start the cooling procedure, so that the cold room to restore low temperature. Hot meals and dishes will gradually cool down in this process. The specific time may vary according to the amount of food, but the leftovers of ordinary families can cool down quickly.
But if you wait for it to cool, the cooling process gives bacteria a great opportunity. Especially in the summer, when the temperature is high, the amount can double in less than half an hour after you let it cool, and the food may harbor a lot of bacteria before it even goes into the refrigerator.
For your health's sake, keep your meals sealed and hot in the fridge.