When should any leftovers be refrigerated to ensure safety?

Leftovers should be refrigerated within two hours to ensure safety. This guideline is based on food safety principles that prevent the growth of harmful bacteria. When food is left out at room temperature, it enters the "danger zone," which is between 40°F and 140°F, where bacteria can multiply rapidly. By refrigerating leftovers within two hours, you significantly reduce the risk of foodborne illness.

This time frame is particularly important when the food is cooked or has been served, as these conditions can introduce bacteria that can thrive in the optimal temperature range. By refrigerating promptly, you help maintain the food's freshness while also protecting the health of anyone consuming the leftovers.