How long does mayonnaise last once opened?
Mayonnaise (commercial, opened) keeps 2 months in the refrigerator.
Fridge
After opening
2months
Freezer
Do not freeze
-
Pantry
No known time
-
Mine has been in the fridge for
Refreeze after thawing in the fridge?
- United States
- -
- United Kingdom
- -
How long does mayonnaise last in the refrigerator?
- Commercial, opened2 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 |
|---|---|---|---|
| Commercial | - | - | 3-6 months |
Sources
We always show the most cautious time among official sources. Last verified: October 1, 2026.