How Long Does Mayonnaise Last?
Quick Answer
Mayonnaise lasts 3-4 months past printed date when unopened. Once opened, it should be used within 2 months refrigerated.
Shelf Life by Storage Condition
| Storage Condition | Duration |
|---|---|
| Pantry (Unopened) | 3-4 months past printed date |
| Pantry (Opened) | Not applicable |
| Refrigerator (Unopened) | 3-4 months past printed date |
| Refrigerator (Opened) | 2 months |
| Freezer | Not applicable |
How to Tell If It Has Gone Bad
- Change in color or texture
- Off or sour odor
- Presence of mold
- Separation or excessive liquid
Proper Storage Tips
- Keep mayonnaise refrigerated after opening
- Always use a clean utensil to avoid contamination
- Store in original container with lid tightly closed
Risks of Using Expired Mayonnaise
Consuming expired mayonnaise can lead to foodborne illness due to bacterial growth, including pathogens like Salmonella. Spoiled mayonnaise may cause gastrointestinal symptoms such as nausea, vomiting, and diarrhea.
Get an Expiration Reminder
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Frequently Asked Questions
How long does Mayonnaise last?
Unopened mayonnaise lasts 3-4 months past the printed date; once opened, it should be used within 2 months if refrigerated.
Does Mayonnaise expire?
Yes, mayonnaise can expire and spoil, especially after opening and improper storage.
How can you tell if Mayonnaise has gone bad?
Signs include changes in color or texture, sour or off odors, mold growth, and separation of liquids.