Produce
How long does Mushrooms (fresh) last?
Medium confidence
Quality concern
How long does Mushrooms (fresh) last? fridge 4–7 days, freezer 1 year (cooked). Plus spoilage signs, sources, and an unopened-vs-opened note.
Fridge
4–7 days
Pantry
Refrigerate only
Freezer
1 year (cooked)
Sealed / unopened: N/A
Signs Mushrooms (fresh) has gone bad
- Slimy or wet caps, dark patches.
- Fishy or fermented smell.
- Wrinkled or shriveled appearance.
Discard immediately if
- Slimy texture even after rinsing
- Sour smell
- Black or fuzzy mold spreading from a single spot
Why guidance varies
Fresh produce ripening depends on ethylene-gas exposure, storage temperature, humidity, and time since harvest — duration estimates assume typical home conditions, not optimal commercial storage.
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Sources for this answer
- A USDA FoodKeeper — Storage windows and refrigeration guidance for this category.
- A FDA — Are You Storing Food Safely? — Date-label interpretation and food-safety baseline.