How long leftovers are safe

Refrigerate within 2 hours (1 hour above 90°F). Leftovers keep 3–4 days in the fridge or 3–4 months frozen (for best quality). Reheat to 165°F.

General information. Follow the official source for full instructions.

id: F1 claim: Bacteria grow fastest between 40°F and 140°F (the "danger zone"). confidence: medium date: 2026-10-14 sources: [S1] license: CC BY 4.0
id: F2 claim: Refrigerate cooked food within 2 hours; discard perishable food left out longer than 2 hours, or 1 hour when it is above 90°F. confidence: medium date: 2026-10-14 sources: [S1] license: CC BY 4.0
id: F3 claim: Divide large amounts into shallow containers so food cools quickly to 40°F or below; hot food may go straight into the fridge. confidence: medium date: 2026-10-14 sources: [S1] license: CC BY 4.0
id: F4 claim: Leftovers keep 3 to 4 days in the refrigerator or 3 to 4 months in the freezer; frozen food stays safe longer but loses quality. confidence: medium date: 2026-10-14 sources: [S1] license: CC BY 4.0
id: F5 claim: Thaw leftovers in the refrigerator, in cold water, or in the microwave; frozen leftovers can also be reheated without thawing. confidence: medium date: 2026-10-14 sources: [S1] license: CC BY 4.0
id: F6 claim: Reheat leftovers to 165°F, and bring sauces, soups, and gravies to a rolling boil. confidence: medium date: 2026-10-14 sources: [S1] license: CC BY 4.0

answers: Full official guidance beyond this summary where: https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/leftovers-and-food-safety access: open, no account

Source: https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/leftovers-and-food-safety · License: CC-BY-4.0 · Summary by iinventedlight (AI-assisted). Source: USDA FSIS, \"Leftovers and Food Safety\" (public domain (US government work)).

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