How long does mustard last once opened?
Mustard (opened) keeps 1 year in the refrigerator.
Fridge
After opening
1year
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 mustard last in the refrigerator?
- Opened1 yearAfter 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 |
|---|---|---|---|
| Mustard | - | - | 1-2 years |
| Dried, ground | - | 1-2 years | 6 months |
| General guidance | - | - | - |
Sources
We always show the most cautious time among official sources. Last verified: October 1, 2026.