How long does flax seeds, whole last in the pantry?

Unopened flax seeds, whole keeps 365–730 days in the pantry, according to USDA FoodKeeper data. Once opened, 180–365 days.

How long does flax seeds, whole last in the fridge?

Unopened flax seeds, whole keeps 730–1095 days in the fridge, according to USDA FoodKeeper data.

Shelf Stable Foods

whole

🧂

365–730 days unopened

After opening: 180–365 days

🧊

730–1095 days unopened

Whole flax seeds last much longer than ground. Once ground, refrigerate and use within 90 days.

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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.