Condiments
How long does Dijon Mustard last?
High confidence
Quality concern
How long does Dijon Mustard last? fridge 1 year, pantry 2 months. Plus spoilage signs, sources, and an unopened-vs-opened note.
Fridge
1 year
Pantry
2 months
Freezer
Not recommended
Sealed / unopened: 2+ years (pantry)
Signs Dijon Mustard has gone bad
- Dried hard top.
- Browning throughout (not just surface).
- Strong rancid smell beyond sharp Dijon tang.
Discard immediately if
- Any visible mold
- Bottle bulges or hisses when opened
- Smell or color is dramatically off from normal
Why guidance varies
Vinegar, salt, sugar, and acidity content vary widely by brand and formulation — natural and reduced-sugar versions spoil 2–3× faster than traditional ones.
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Sources for this answer
- A USDA FoodKeeper — Storage windows and refrigeration guidance for this category.
- A FDA — Are You Storing Food Safely? — Date-label interpretation and food-safety baseline.