How many hours do leftover foods should be refrigerated?

Leftover foods should be refrigerated within two hours of cooking to prevent bacterial growth. If the temperature is above 90°F (32°C), such as during a picnic or outdoor event, they should be refrigerated within one hour. Properly stored leftovers can typically be kept in the fridge for 3 to 4 days. Always ensure the food is cooled down before sealing it in airtight containers for storage.