Can You Freeze Mushrooms?
Written by Jordan Morley · Reviewed against USDA FoodKeeper · Last updated 28 October 2026
Yes, you can freeze mushrooms. Best quality within 10–12 months; it stays safe beyond that at a constant -18°C.
What freezing does to mushrooms
Raw mushrooms release a lot of water as they freeze and go soggy. Sautéing them briefly in a little oil or butter before freezing gives a far better result, and they can then go straight into sauces and stews. FoodKeeper gives mushrooms a best-quality freezer window of 10–12 months. For comparison, the same database gives peppers 6–8 months, broccoli 10–12 months.
You can also check the calorie content of mushrooms alongside their safety information.
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More freezer essentials
Mushrooms next to similar foods
| Food | Freezer window |
|---|---|
| Broccoli | 10–12 months |
| Carrots | 10–12 months |
| Mushrooms | 10–12 months |
| Onions | 10–12 months |
| Berries | 12 months |
Of the 16 fruit and vegetable foods in the freezing guide, mushrooms have a best-quality window that is longer than 11, equal to 3 and shorter than 1.
Mushrooms: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| In pregnancy | Safe |
| In the fridge | 3–7 days in the fridge |
| Reheating | Yes — safe |
Common questions
How long can you freeze mushrooms?
For best quality, up to 10–12 months (USDA FoodKeeper). It stays safe beyond that, because bacteria cannot grow at a constant -18°C; the time limit is about taste and texture, not safety. Label the pack with the date so you can use the oldest first.
How should I freeze mushrooms?
Wash, prepare and blanch where suitable (broccoli, carrots), cool, drain well, then freeze in a single layer on a tray before bagging. Onions and peppers can be chopped and frozen raw for cooking.
How do I defrost mushrooms?
Cook from frozen where possible; thawing first makes vegetables soggy.
Can you refreeze mushrooms?
Not recommended.
Fridge or freezer for mushrooms?
The fridge window for mushrooms is 3–7 days (USDA FoodKeeper). If you are not going to finish it inside that window, freeze it while it is still fresh, ideally in the first day or two, since freezing only pauses the clock and anything frozen late goes in with less life left.
Is mushrooms with freezer burn safe to eat?
Yes. Freezer burn is dried-out, greyish patches where air has reached the surface; it affects texture and flavour, not safety (USDA). Cut away badly affected areas if you like, and prevent it by wrapping tightly and pressing out the air.
Related answers
Primary source: USDA FoodKeeper.
General information only, not medical advice: see the medical disclaimer. Feeling unwell after eating something? Contact NHS 111 or your GP.