Leftover Shelf Life Calculator
Find out how long your leftovers will safely last in the fridge or freezer.
Based on USDA food safety guidelines.
Food safety in the refrigerator comes down to one key principle: bacteria that cause food poisoning multiply rapidly between 4°C and 60°C (40°F and 140°F) — known as the “danger zone.” Refrigeration at or below 4°C (40°F) slows but does not stop bacterial growth. That’s why even refrigerated food has a limited safe shelf life.
The general rules (USDA guidelines):
- Cooked leftovers: Safe for 3–4 days in the refrigerator
- Raw meat and poultry: 1–2 days in the refrigerator (ground meat), 3–5 days (whole cuts)
- Cooked pasta and rice: 3–5 days (rice can harbor Bacillus cereus spores — cool quickly)
- Soups and stews: 3–4 days
- Hard cheeses: 3–4 weeks; soft cheeses 1 week
- Eggs (raw, in shell): 3–5 weeks
- Cooked eggs: 1 week
The 2-hour rule: Never leave cooked food out at room temperature for more than 2 hours. In hot weather (above 32°C / 90°F), this drops to 1 hour. Bacteria can double every 20 minutes at warm temperatures.
Cooling leftovers safely:
- Divide large batches into shallow containers to cool faster
- Do not put hot food directly in the fridge in large pots — it raises the internal temperature and puts other food in the danger zone
- Cool to room temperature (no longer than 2 hours total), then refrigerate
When in doubt, throw it out: If food looks, smells, or tastes off — discard it. Many dangerous bacteria (like Salmonella) produce no odor or visible signs. Don’t rely on smell alone.
Freezing extends shelf life significantly: Most cooked foods freeze well for 2–3 months. Raw meats can freeze for 4–12 months. Label everything with the date before freezing.