How to Store Mayonnaise | Shelf Life & Spoilage Signs
Quick Storage Facts
| Storage Method | Duration | Safety | Notes |
|---|---|---|---|
| pantry | Until expiration date (unopened commercial) | ✅ | Store in cool, dark place |
| refrigerator | 2 months (opened commercial), 1 week (homemade) | ✅ | Keep tightly sealed when not in use |
| freezer | Not recommended | ❌ | Freezing causes separation and texture changes |
| room Temperature | 8 hours (commercial), 2 hours (homemade) | ⚠️ | Commercial mayo with preservatives is more stable |
Signs of Spoilage
- •Unusual or off smell
- •Separation that doesn't recombine when stirred
- •Mold growth (especially around rim of jar)
- •Yellowing beyond the normal color
- •Sour or bitter taste
- •Watery texture or unusual thickness
Storage & Reheating Tips
- •Store unopened commercial mayonnaise in a cool, dark pantry until the expiration date
- •Once opened, keep mayonnaise refrigerated at all times
- •Always use clean utensils when scooping mayonnaise to prevent contamination
- •Don't return unused mayonnaise to the jar if it has been in contact with other foods
- •Keep the jar tightly sealed when not in use
- •Store mayonnaise on a refrigerator shelf, not in the door where temperature fluctuates
- •Homemade mayonnaise lacks preservatives and should be used within a week
- •For picnics, use commercial mayonnaise and keep food cold with ice packs
Food Safety Reminder
When in doubt, throw it out! Food can harbor harmful bacteria without visible signs of spoilage.
Frequently Asked Questions