Sauces & condiments · Storage guide
How long does mayonnaise last? Fridge, freezer & pantry
Storage temperatures: keep the fridge at ≤4 °C (40 °F), the freezer at −18 °C (0 °F), and the pantry cool and dry at room temperature.
| Fridge ≤4 °C · 40 °F | about 2 weeks |
|---|---|
| Freezer −18 °C · 0 °F | Not recommended |
| Pantry room temp | Not recommended |
| After opening | about 2 weeks (refrigerated) |
Times are for unopened, properly stored mayonnaise and reflect best quality. Always use your senses and follow any date on the package.
Signs mayonnaise has gone bad
- Rapid spoilage if it's left out at room temperature.
- A sour or off smell.
- Oil separation or a darkened colour.
When in doubt, throw it out — the cost of a spoiled meal isn't worth the risk.
Best way to store mayonnaise
An open jar of mayonnaise must live in the fridge — never the pantry — because of its egg yolk; refrigerated, it keeps a couple of months. Unlike a shelf-stable spread, mayo left out is genuine food-poisoning territory, so use a clean utensil and reseal it tightly.
Frequently asked questions
How long does mayonnaise last in the freezer?
Freezing mayonnaise is not recommended — it loses too much texture or quality. Store it refrigerated instead, as shown in the table above.
How long does mayonnaise last in the fridge or refrigerator?
Unopened mayonnaise keeps for about 2 weeks in the fridge. After opening, use it within about 2 weeks.
How can I tell if mayonnaise has gone bad?
Rapid spoilage if it's left out at room temperature. A sour or off smell. Oil separation or a darkened colour. When in doubt, throw it out.
Sources
Shelf-life figures and food-safety guidance are based on these authoritative sources:
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