Most cooked leftovers should be eaten or frozen within 3 to 4 days when they have been refrigerated promptly at 40°F (4°C) or below. That short window applies to common foods such as cooked meat and poultry, soups, stews, casseroles, and pizza. If food sat out too long before refrigeration, however, the refrigerator does not make it safe again.
Use the guide below to decide when to refrigerate, freeze, reheat, or discard leftovers—and why smell alone is not a reliable safety test.
How long are leftovers good in the refrigerator?
The USDA recommends using most cooked leftovers within 3 to 4 days. Refrigeration slows bacterial growth, but it does not stop it. Keep the refrigerator at 40°F (4°C) or below, and store food in covered, shallow containers so it cools quickly.
| Food | Refrigerator at 40°F (4°C) or below | Freezer at 0°F (-18°C) or below |
|---|---|---|
| Cooked meat or poultry | 3 to 4 days | 2 to 6 months for best quality |
| Soups and stews | 3 to 4 days | 2 to 3 months for best quality |
| Pizza | 3 to 4 days | 1 to 2 months for best quality |
| Cooked egg casseroles | 3 to 4 days | 2 to 3 months for best quality |
| Hard-boiled eggs | 1 week | Do not freeze |
These times are safety-focused refrigerator limits and quality-focused freezer ranges from the federal Cold Food Storage Chart. Freezing keeps food safe for much longer when it stays continuously frozen, but texture and flavor gradually decline. For egg-specific storage times, see our refrigerator guide to eggs.
Leftover Safety Date Guide
Choose the day the food was cooked and refrigerated. The guide uses the upper end of the official refrigerator window, so eating it earlier is a more conservative choice.
This tool assumes the food was refrigerated within 2 hours (1 hour above 90°F/32°C) and kept at 40°F/4°C or below. It cannot make food safe if it was mishandled.
The clock starts before the food reaches the refrigerator
Perishable food should be refrigerated or frozen within 2 hours of cooking, serving, or bringing takeout home. If the food is exposed to temperatures above 90°F (32°C)—for example, at a summer picnic or in a hot car—the limit drops to 1 hour.
Food left out longer than those limits should be discarded. Putting it in the refrigerator later, freezing it, or reheating it does not reliably undo the risk. The safe-storage countdown also does not restart each time you reheat the food.
How to cool and store leftovers safely
1. Refrigerate food promptly
You do not need to leave a large pot on the counter until it reaches room temperature. Instead, divide the food into smaller portions and transfer it to shallow containers. This allows heat to escape faster and helps the center cool promptly.
2. Label the container
Write the food name and storage date on the lid. A simple label removes the guesswork when several containers collect in the refrigerator. If you are unlikely to finish the food within 3 to 4 days, freeze it early rather than waiting until the final day.
3. Keep the refrigerator cold enough
Set the refrigerator to 40°F (4°C) or below and check it with an appliance thermometer. Avoid packing the refrigerator so tightly that cold air cannot circulate. During a power outage, a closed refrigerator generally keeps food cold for about 4 hours; discard perishable leftovers if they have been above 40°F for more than 2 hours.
Can you tell whether leftovers are safe by smelling them?
No. An unpleasant smell, visible mold, or a slimy texture clearly means food should be discarded, but food can contain harmful bacteria without looking or smelling spoiled. Do not taste a bite to “check.” When the storage time or temperature is uncertain, throwing it away is the safer choice.
Moldy leftovers should generally be discarded as a whole. Scraping mold from a soft, moist food such as a casserole, cooked pasta, or soup does not remove growth that may extend below the surface.
How to reheat leftovers
Reheat leftovers to an internal temperature of 165°F (74°C), measured with a food thermometer. Bring sauces, soups, and gravies to a rolling boil. When using a microwave, cover the food, rotate or stir it, and check more than one spot because microwaves can leave cold areas.
Reheating makes properly stored leftovers ready to eat; it does not reset the original refrigerator deadline. Only reheat the portion you plan to serve. For poultry preparation before it becomes a leftover, our guide explains why raw chicken should not be washed.
When freezing is the better option
Freeze leftovers if you will not eat them within the refrigerator window. Use freezer-safe, airtight containers, leave a little room for foods that expand, and label each package with the name and date. Smaller portions freeze and thaw more evenly.
Thaw frozen leftovers in the refrigerator, in cold water, or in the microwave—not on the counter. Food thawed in cold water or the microwave should be reheated immediately. Freezer times in storage charts describe best quality; continuously frozen food can remain safe longer, although flavor and texture may deteriorate.
Bottom line
For most cooked leftovers, remember four numbers: refrigerate within 2 hours, keep the refrigerator at 40°F or below, use the food within 3 to 4 days, and reheat it to 165°F. If the food sat out too long or its history is unclear, discard it instead of relying on smell, appearance, or a taste test.
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