How Long Does Mayo Last in the Fridge?

storage instructions and use it promptly.
The Bottom Line

So, how long does mayo last in the fridge?

For commercial mayonnaise, an opened jar is commonly treated as having a refrigerated life of roughly two months, but there isn’t one universal timeline that applies to every product or situation.

The most important factors are proper refrigeration, clean handling, the manufacturer’s instructions, and the condition of the mayonnaise itself.

If you notice mold, a strong unpleasant odor, significant discoloration, or an unusual texture, don’t try to rescue it.

When you’re unsure, it’s better to replace the jar than take a chance.