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Condiments & Spreads
How long does mustard last?
Vinegar-based mustard sauce.
Quick answer
Pantry (room temp)
2 years
Unopened: 2 years past sell-by
After opening
1 year
1 year in fridge after opening
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Signs mustard has gone bad
- •Drying out (still safe — add vinegar)
- •Mold around lid
- •Off smell
Storage tips
- ✓Vinegar preserves mustard for years
- ✓Watery separation = stir, still good
- ✓Specialty mustards have shorter lives
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Disclaimer: Times shown are USDA/FDA-recommended best quality periods, not absolute safety guarantees. Storage conditions, packaging, and food handling all affect actual shelf life. When in doubt, throw it out.