Contents

Whole linseed, high in alpha-linolenic acid. Whole keeps two years; ground goes rancid in weeks, which is why it is sold whole.

How long it keeps

Unopened, this keeps 2 years — which is what puts it on the long shelf.

As sold Unopened, in the cupboard Once opened
whole seed 2 years

Counted from the day you bought it. Figures are the USDA FSIS FoodKeeper table's, for unopened storage at room temperature; FoodKeeper counts a month as 30 days.

The table was not pulled from USDA — fsis.usda.gov answers 403 to non-browser clients from this machine — so it came from a mirror of the data.gov dataset and its vintage is unverified. Treat a single figure as indicative, not as a use-by date.