How Long Food Lasts

Shelf Stable Foods

How long does "genuine" maple syrup last?

Quick answer

"Genuine" Maple syrup (unopened, glass) keeps indefinitely in the refrigerator.

  • Unopened, glass indefinitely in the refrigerator
  • Unopened, plastic 18-24 months in the refrigerator
Form

Fridge

From purchase

indefinitely

Freezer

No known time

-

Pantry

4years

Refreeze after thawing in the fridge?

United States
Yes
United Kingdom
Only after cooking

How long does "genuine" maple syrup last in the refrigerator?

  • Unopened, glassindefinitelyFrom purchase
  • Unopened, plastic18-24 monthsFrom purchase

Refrigerators should be set to maintain a temperature of 40 °F or below.

Your fridge should be set between 0 and 5°C.

Can you freeze "genuine" maple syrup?

Yes.

How to thaw "genuine" maple syrup safely

  1. In the refrigerator
  2. In cold water, cook it right after thawing
  3. In the microwave, cook it right after thawing
  4. Cook it from frozen

There are three safe ways to thaw food: in the refrigerator, in cold water, or in the microwave.

Check the water frequently to be sure it stays cold. Change the water every 30 minutes. After thawing, cook immediately.

It is safe to cook foods from the frozen state. The cooking will take approximately 50% longer than the recommended time for fully thawed or fresh meat and poultry.

You should defrost your food in the fridge so that it doesn’t get too warm

It’s also important to use food within 24 hours after it’s been fully defrosted

Can you refreeze "genuine" maple syrup?

  • In the United StatesYes
  • In the United KingdomOnly after cooking

Food thawed in the refrigerator can be refrozen without cooking, although there may be some loss of quality.

Foods thawed by the cold water method should be cooked before refreezing.

After cooking raw foods which were previously frozen, it is safe to freeze the cooked foods.

You can freeze food again once cooked, but you’ll only be able to reheat it once after that

Can "genuine" maple syrup be stored at room temperature?

  • Unopened, glass4 years
  • Unopened, plastic2 years

All forms at a glance

FormFridgeFreezerPantry
Unopened, glassindefinitely-4 years
Unopened, plastic18-24 months-2 years
General guidance---

Frequently asked questions

How long does "genuine" maple syrup last in the refrigerator?

Unopened, glass: indefinitely; Unopened, plastic: 18-24 months.

Can you freeze "genuine" maple syrup?

Yes.

Can you refreeze "genuine" maple syrup?

In the United States: Yes; In the United Kingdom: Only after cooking.

Sources

We always show the most cautious time among official sources. Last verified: October 1, 2026.