Maple syrup Per USDA FoodKeeper
On the counterCounter
4 years
cool, dry place
In the fridgeFridge
Indefinitely
at or below 40°F (4°C)
In the freezerFreezer
Not listed
no FoodKeeper figure
Quick answer
Yes. Maple syrup lasts 4 years in the pantry. After that, or sooner if stored badly, it spoils: watch for the signs below.
How to tell if maple syrup is bad
Smell
Musty, sour or rancid odour.
Texture
Clumping from moisture, or a damp feel.
Pests
Webbing, holes, or tiny insects in the bag.
Flavour
Flat, stale or bitter taste — quality is gone even if it is safe.
Maple syrup past the expiration date
Best-by and sell-by
FoodKeeper gives unopened maple syrup 4 years in the pantry or indefinitely in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
Past the date
Maple syrup past its best-by date is usually safe if stored well; check smell, look and taste before using.
How to keep maple syrup fresh longer
- Store in an airtight container in a cool, dark, dry place.
- Keep away from the stove and dishwasher, where heat and humidity speed spoilage.
- Write the opening date on the pack.
More about maple syrup
FAQ
How long does it take for maple syrup to go bad?
4 years in the pantry, per USDA FoodKeeper.
Can maple syrup expire?
FoodKeeper gives unopened maple syrup 4 years in the pantry or indefinitely in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
What happens if you eat bad maple syrup?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep maple syrup from going bad?
Store in an airtight container in a cool, dark, dry place.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number