How long does maple syrup, pure last in the pantry?

Unopened maple syrup, pure keeps 540–1095 days in the pantry, according to USDA FoodKeeper data. Once opened, 30–60 days.

How long does maple syrup, pure last in the freezer?

Unopened maple syrup, pure keeps 1825–3650 days in the freezer, according to USDA FoodKeeper data.

Condiments, Sauces & Canned Goods

pure

🧂

540–1095 days unopened

After opening: 30–60 days

❄️

1825–3650 days unopened

Refrigerate after opening to prevent mold. Mold spots = boil and skim, then strain — syrup itself can't go bad due to high sugar.

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Storage estimates for this item are from Cooperative Extension Service food-safety bulletins. ok2eat collates shelf-life data from multiple public, trusted sources and normalizes to days for comparability. See our directory home for the full source list.