Yams/sweet potatoes keep about 2–3 weeks in the pantry.
| Situation | Keeps for |
|---|---|
| Unopened · pantry | 2–3 weeks |
About 2–3 weeks, according to USDA FoodKeeper v128, stored as follows: cool, dry pantry away from heat and light.
Yams/sweet potatoes are shelf-stable at room temperature: cool, dry pantry away from heat and light. Refrigerating it mainly preserves quality rather than safety.
Look for: Sliminess or a wet film; Mould or dark mushy spots; Limp, shrivelled, or yellowing leaves; An off or sour smell. Never taste something to test it — when in doubt, throw it out.