FOOD STORAGE GUIDE
How long does mayonnaise (commercial) last?
SOURCE USDA FOODKEEPER · DATASET V128
Mayonnaise (commercial) keeps about 3–6 months in the pantry and 2 months in the refrigerator, per USDA FoodKeeper guidance.
| Where | How long | Notes |
|---|---|---|
| Pantry | 3–6 months | From date of purchase. |
| Refrigerator | 2 months | After opening. |
Data: USDA FoodKeeper, dataset version 128. Windows assume typical products stored properly.