Sauces & condiments · Storage guide
How long does mustard last? Fridge, freezer & pantry
Storage temperatures: keep the fridge at ≤4 °C (40 °F), the freezer at −18 °C (0 °F), and the pantry cool and dry at room temperature.
| Fridge ≤4 °C · 40 °F | about 3 months |
|---|---|
| Freezer −18 °C · 0 °F | Not recommended |
| Pantry room temp | Not recommended |
| After opening | about 3 months (refrigerated) |
Times are for unopened, properly stored mustard and reflect best quality. Always use your senses and follow any date on the package.
Signs mustard has gone bad
- Mould, separation that won't mix back, or a bulging lid.
- Off, sour, or fermented smell.
- Colour change or fizzing when opened.
When in doubt, throw it out — the cost of a spoiled meal isn't worth the risk.
Best way to store mustard
Many condiments are shelf-stable until opened, then need the fridge. Always check the label. Keep lids clean and tightly closed, and use a clean utensil so you don't introduce bacteria.
Frequently asked questions
How long does mustard last in the freezer?
Freezing mustard is not recommended — it loses too much texture or quality. Store it refrigerated instead, as shown in the table above.
How long does mustard last in the fridge or refrigerator?
Unopened mustard keeps for about 3 months in the fridge. After opening, use it within about 3 months.
How can I tell if mustard has gone bad?
Mould, separation that won't mix back, or a bulging lid. Off, sour, or fermented smell. Colour change or fizzing when opened. When in doubt, throw it out.
Sources
Shelf-life figures and food-safety guidance are based on these authoritative sources:
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