Syrups & nut butters · Storage guide
How long does maple syrup 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 | 1 year |
|---|---|
| Freezer −18 °C · 0 °F | Not recommended |
| Pantry room temp | 1 year |
| Once cooked or cut | 1 year (refrigerated) |
Times are for unopened, properly stored maple syrup and reflect best quality. Always use your senses and follow any date on the package.
Signs maple syrup has gone bad
- A xerophilic mould film floating on the surface — the classic sign it sat out too warm.
- A fermented, fizzy, or sour smell.
- Cloudiness or off-colour sediment that wasn't there before.
When in doubt, throw it out — the cost of a spoiled meal isn't worth the risk.
Best way to store maple syrup
Real maple syrup is not shelf-stable once opened — it must go in the fridge after the seal is broken, where it keeps for around a year. Store the unopened bottle in a cool, dark cupboard.
Frequently asked questions
How long does maple syrup last in the freezer?
Freezing maple syrup is not recommended — it loses too much texture or quality. Store it refrigerated, or in a cool, dry pantry instead, as shown in the table above.
How long does maple syrup last in the fridge or refrigerator?
Unopened maple syrup keeps for about 1 year in the fridge. After opening, use it within about 1 year.
How can I tell if maple syrup has gone bad?
A xerophilic mould film floating on the surface — the classic sign it sat out too warm. A fermented, fizzy, or sour smell. Cloudiness or off-colour sediment that wasn't there before. When in doubt, throw it out.
Sources
Shelf-life figures and food-safety guidance are based on these authoritative sources:
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