Sweet potatoes Per USDA FoodKeeper
On the counterCounter
2–3 weeks
cool, dry place
In the fridgeFridge
Not needed
shelf-stable
In the freezerFreezer
Not needed
keeps without freezing
Quick answer
Yes. Sweet potatoes last 2–3 weeks in the pantry. After that, or sooner if stored badly, they spoil: watch for the signs below.
How to tell if sweet potatoes are bad
Smell
Fermented, sour or musty odour.
Texture
Soft, mushy or leaking spots, or wrinkled skin with soft flesh.
Colour
Dark bruising that spreads, or browning inside.
Mould
White, grey or green fuzz — discard soft produce; cut firm produce generously.
Sweet potatoes past the expiration date
Best-by and sell-by
FoodKeeper gives unopened sweet potatoes 2–3 weeks in the pantry, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
Past the date
Sweet potatoes past their best-by date are usually safe if stored well; check smell, look and taste before using.
How to keep sweet potatoes fresh longer
- Store unwashed; wash just before eating.
- Keep ethylene producers (apples, bananas, avocados) away from produce that over-ripens.
- Refrigerate once cut, in a covered container.
More about sweet potatoes
FAQ
How long does it take for sweet potatoes to go bad?
2–3 weeks in the pantry, per USDA FoodKeeper.
Can sweet potatoes expire?
FoodKeeper gives unopened sweet potatoes 2–3 weeks in the pantry, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
What happens if you eat bad sweet potatoes?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep sweet potatoes from going bad?
Store unwashed; wash just before eating.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number