How long does tuna last once opened?
Tuna (packet, opened) keeps 3-4 days in the refrigerator.
Fridge
After opening
3-4days
Freezer
No known time
-
Pantry
No known time
-
Mine has been in the fridge for
Refreeze after thawing in the fridge?
- United States
- Yes
- United Kingdom
- Only after cooking
How long does tuna last in the refrigerator?
- Packet, opened3-4 daysAfter 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 |
|---|---|---|---|
| Packet | - | - | 18 months |
| Canned | - | - | 3 years |
| General guidance | - | 2-3 months | - |
What the official sources say
“Tuna and other seafood in retort pouches 18 months 3 to 4 days in the refrigerator”
Sources
We always show the most cautious time among official sources. Last verified: October 1, 2026.