How long do roasted nuts (peanuts, cashews, almonds) last?
Short answer: Roasted nuts (peanuts, cashews, almonds) keep 4 weeks once opened in the fridge and until the use-by date (1–2 weeks once opened) in the pantry.
Storage chart
| Pantry | Fridge |
|---|---|
| Until the package use-by date; 1–2 weeks (after opening) | 4 weeks (after opening) |
Fridge at 40°F (4°C) or colder, freezer at 0°F (−18°C). Freezer times are for best quality; food kept frozen stays safe indefinitely.
Keep it longer
Keep the fridge at 40°F (4°C) or colder and the freezer at 0°F (−18°C). Write the date on containers when you open or cook something.
Common questions
How long do roasted nuts (peanuts, cashews, almonds) last in the fridge?
4 weeks once opened in the refrigerator at 40°F (4°C) or below, according to USDA FoodKeeper data.
How long do roasted nuts (peanuts, cashews, almonds) last at room temperature?
Until the package use-by date (1–2 weeks once opened) in a cool, dry pantry.
How can I tell if roasted nuts (peanuts, cashews, almonds) have gone bad?
Throw them out if you see mold, a slimy texture, an off smell or an odd color. For anything perishable, go by the storage time rather than smell: bacteria that cause food poisoning don't usually change how food looks or smells.
More shelf stable foods
Source: USDA FoodKeeper data (USDA Food Safety and Inspection Service). Updated 2026-10-13. General information, not medical advice. When in doubt, throw it out.