How long does flax seeds, ground / milled last in the pantry?

Unopened flax seeds, ground / milled keeps 30–60 days in the pantry, according to USDA FoodKeeper data.

How long does flax seeds, ground / milled last in the fridge?

Unopened flax seeds, ground / milled keeps 90–180 days in the fridge, according to USDA FoodKeeper data.

Unopened flax seeds, ground / milled keeps 365–540 days in the freezer, according to USDA FoodKeeper data.

Shelf Stable Foods

ground / milled

🧂

30–60 days unopened

🧊

90–180 days unopened

❄️

365–540 days unopened

Ground flax goes rancid much faster than whole. Refrigerate or freeze immediately after grinding.

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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.