Opened commercial mayonnaise keeps about 2 months in the fridge at 40°F or below. Don't freeze it. Mayo-based salads like chicken or egg salad last 3-5 days.
Storage times from USDA, FoodSafety.gov, FDA and university extension services. Checked .
How long does mayonnaise last in the fridge?
2 months at 40°F (4°C) or below.
Can you freeze mayonnaise?
do not freeze; it separates
- Don't freeze mayonnaise; the emulsion breaks.
- Mayo-based salads don't freeze well either.
How long can mayonnaise sit out?
No more than 2 hours at room temperature, or 1 hour when it's above 90°F (USDA's 2-hour rule). After that, throw it out.
How to tell if mayonnaise has gone bad
- Sour or off smell
- Yellowing or discoloration
- Separation or mold
Bacteria that cause food poisoning don't always change the look or smell of food, so go by the storage times above. When in doubt, throw it out.
Questions people ask
Does mayonnaise have to be refrigerated after opening?
Yes. Refrigerate it after opening and use within about 2 months.
How long does tuna or egg salad last?
3-5 days in the fridge; don't freeze it.
Can food with mayonnaise be frozen?
Not as is. Do not freeze; it separates.
Can I freeze mayonnaise?
Not as is. Do not freeze; it separates.