Once opened, Nuts (jars or cans) keep about 4–6 months in the fridge. Unopened, they keep about 1 year.
4–6 months opened in the fridge, against 1 year sealed in the pantry. Green is what this situation leaves you; husk is what it spends.
| Situation | Keeps for |
|---|---|
| Unopened · pantry | 1 year |
| Opened · pantry | 2–9 months |
| Opened · fridge | 4–6 months |
| Freezer | 6–12 months |
Air and warmth are what shorten an opened item's life — the right container buys back the days the packaging gives up once the seal's broken.
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About 4–6 months refrigerated at 40°F (4°C) or below, according to USDA FoodKeeper v128.
Nuts (jars or cans) are shelf-stable at room temperature: cool, dry pantry, sealed — refrigerating after opening is optional and mainly preserves quality. Refrigerating it mainly preserves quality rather than safety.
Look for: A rancid, paint-like, or musty smell; Bulging, leaking, deeply dented, or rusted cans; Insects or webbing in dry goods; Mould or discoloration. Those are the general signs for pantry staples — USDA FoodKeeper v128 publishes no spoilage note for Nuts (jars or cans) specifically. Never taste something to test it — when in doubt, throw it out.
Yes — USDA FoodKeeper v128 gives about 6–12 months in the freezer at 0°F (−18°C). Frozen food stays safe indefinitely; that window is about quality, not safety.