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How Long Are Leftovers Safe in the Refrigerator?

A clear guide to prompt chilling, shallow containers, refrigerator temperature, and when official advice says to discard leftovers.

Published 10/6/2026

General health education, not personal medical advice. Ask a qualified health professional before changing your care. Read our editorial standards.
In this article

The short answer

FoodSafety.gov advises using most cooked leftovers within four days when they have been handled and refrigerated properly. Refrigerate perishable food within two hours, or within one hour when the temperature is above 90°F (32°C). When food has spent too long in the temperature danger zone, do not rely on smell or appearance to decide it is safe.

Cool and store promptly

Divide large amounts into shallow containers so they cool more quickly, then refrigerate or freeze promptly. Keep the refrigerator at 40°F (4°C) or below; an appliance thermometer can help check the actual temperature. Label containers with the date if that makes it easier to use food in time.

Reheat safely

Reheat leftovers to 165°F (74°C), checking with a food thermometer where appropriate. Stir or rotate food in a microwave and allow it to stand so heat distributes more evenly. Reheat only the portion you plan to eat when practical.

When to throw food away

Discard perishable food left out beyond the recommended time, food with uncertain storage history, or food affected by a power outage according to official guidance. Children under five, adults 65 and older, pregnant people, and people with weakened immune systems are at higher risk of serious foodborne illness and should be especially careful.

Rules can vary for particular foods and situations. Check the FoodSafety.gov cold storage chart and its leftover guidance for details.

Health disclaimer

This article is for general education only. Its information and suggestions are not medical advice, diagnosis, or treatment and may not be right for everyone. Ask a qualified health professional for advice that fits your health, medications, and needs before changing your diet, exercise, supplement use, or care.

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