How Long Food Lasts

Shelf Stable Foods

How long does flaxseed last?

Quick answer

Flaxseed (ground) keeps 12 months in the fridge and 12 months in the freezer.

Form

Fridge

From purchase

12months

Freezer

Can be frozen: yes

12months

Pantry

No known time

-

Mine has been in the fridge for

Refreeze after thawing in the fridge?

United States
Yes
United Kingdom
Only after cooking

How long does flaxseed last in the fridge?

  • Ground12 monthsFrom purchase

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

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

How long does flaxseed last in the freezer?

  • Ground12 months

Freezer times are for quality; frozen food stays safe.

Your freezer should be around -18°C

A freezer acts as a pause button - food in a freezer won’t go bad and most bacteria cannot grow in it.

Food stored constantly at 0 °F will always be safe. Only the quality suffers with lengthy freezer storage.

Can you freeze flaxseed?

Yes.

How to defrost flaxseed safely

  1. In the fridge
  2. In cold water, cook it straight after defrosting
  3. In the microwave, cook it straight after defrosting
  4. Cook it from frozen

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

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.

Can you refreeze flaxseed?

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

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

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.

Can flaxseed be kept out of the fridge?

  • Whole seed2 years

All forms at a glance

FormFridgeFreezerPantry
Whole seed--2 years
Ground12 months12 months-

Frequently asked questions

How long does flaxseed last in the fridge?

Ground: 12 months.

How long does flaxseed last in the freezer?

Ground: 12 months. Freezer times are for quality; frozen food stays safe.

Can you freeze flaxseed?

Yes.

Can you refreeze flaxseed?

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

Sources

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