Dips & condimentsHow long does
How long does
mayonnaise, opened last?
Commercial mayonnaise should be refrigerated after opening; mixed dishes may be more perishable.
What to do
Keep tightly closed and avoid contamination.
Do not take a chance
Discard mayonnaise-based dishes after unsafe warm exposure.
These times are guidance, not a guarantee. Initial freshness, preparation, packaging and actual temperature all matter. Never taste questionable food to test safety.