How long do sunflower seeds last once opened?
Sunflower seeds (roasted, no shell, opened) keep 7-8 months in the refrigerator.
Fridge
After opening
7-8months
Freezer
No known time
-
Pantry
3-4months
Mine has been in the fridge for
Refreeze after thawing in the fridge?
- United States
- Yes
- United Kingdom
- Only after cooking
How long do sunflower seeds last in the refrigerator?
- Roasted, no shell, opened7-8 monthsAfter opening
Refrigerators should be set to maintain a temperature of 40 °F or below.
Your fridge should be set between 0 and 5°C.
Other forms
| Form | Fridge | Freezer | Pantry |
|---|---|---|---|
| Raw, unsalted, no shell | - | - | 12 months |
| Roasted, no shell | - | - | 12 months |
| Roasted, salted, in shell | - | - | use-by date on package |
| General guidance | - | - | - |
Sources
We always show the most cautious time among official sources. Last verified: October 1, 2026.