How long does mayonnaise last?
Unopened, it keeps in the cupboard for about 3 months. Once opened, in the fridge for about 1 month.
This refers to: Commercial mayonnaise (jar or tube).
Shelf life of mayonnaise at a glance
| Storage | Unopened | Opened |
|---|---|---|
| Cupboard | 3 months | – |
| Fridge | – | 1 month |
Once opened, keep it in the main fridge compartment at 2 to 7 °C, not the door. Homemade mayonnaise with raw egg must be eaten within 24 hours.
Past its date does not mean spoiled
These are guide values for food stored correctly. A best-before date is not a throw-away date: many products are still fine after it. Check how it looks, smells and tastes. Mould, an unusual smell or a bulging can are reasons to throw it away. A use-by date is different: do not eat the food after it.