True. It is recommended to let hot foods cool before putting them in the fridge. Placing hot foods directly into the fridge can raise the temperature inside, which may promote the growth of bacteria and increase the risk of foodborne illness. However, hot foods should not be left out at room temperature for too long, as this can also cause bacterial growth. To cool hot foods safely, you can:

• Let them cool for about 30 minutes at room temperature.
• Use shallow containers to speed up the cooling process.
• If needed, place the food in a cooler or ice bath to cool it more quickly before refrigerating.

This ensures that the food cools down to a safe temperature before refrigeration.