The World Health Organization also recommends that food should not be stored at room temperature for more than 2 hours. Many people worry that putting hot dishes directly into the refrigerator will damage the refrigerator. In fact, the refrigeration efficiency of refrigerators has been greatly improved. Although putting hot dishes in the refrigerator will slightly increase the burden of the refrigerator and consume a little more electricity, it is within the normal operation range of the refrigerator. It's not a pity to spend more electricity than food spoilage caused by bacterial growth. After all, safety is the most important thing.