Pumpkin seeds Per USDA FoodKeeper
On the counterCounter
6 months
cool, dry place
In the fridgeFridge
6 months
at or below 40°F (4°C)
In the freezerFreezer
Not listed
no FoodKeeper figure
Quick answer
Yes. Pumpkin seeds last 6 months in the pantry. After that, or sooner if stored badly, they spoil: watch for the signs below.
How to tell if pumpkin seeds are bad
Smell
Rancid: like crayons, paint or old nuts.
Taste
Bitter or soapy aftertaste.
Texture
Sticky or gummy residue around the lid.
Colour
Darkened or cloudy where it should be clear.
Pumpkin seeds past the expiration date
Best-by and sell-by
FoodKeeper gives unopened pumpkin seeds 6 months in the pantry or 6 months in the fridge, 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
Pumpkin seeds past their best-by date are usually safe if stored well; check smell, look and taste before using.
How to keep pumpkin seeds fresh longer
- Keep in a cool, dark place, tightly closed, away from heat.
- Refrigerating nuts, seeds and nut oils extends shelf life significantly.
- Smell before using; rancidity is a quality problem you can detect.
More about pumpkin seeds
FAQ
How long does it take for pumpkin seeds to go bad?
6 months in the pantry, per USDA FoodKeeper.
Can pumpkin seeds expire?
FoodKeeper gives unopened pumpkin seeds 6 months in the pantry or 6 months in the fridge, 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 pumpkin seeds?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep pumpkin seeds from going bad?
Keep in a cool, dark place, tightly closed, away from heat.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number