- Jan 19, 2018 -
How long does a can or bottle of mushrooms last once opened? The precise answer depends to a large extent on storage conditions - keep opened mushrooms refrigerated and tightly covered.
To maximize the shelf life of canned mushrooms after opening, refrigerate in covered glass or plastic container.
How long do opened canned mushrooms last in the refrigerator? Canned mushrooms that have been continuously refrigerated will keep for about 3 to 4 days.
Are canned mushrooms safe to use after the "expiration" date on the package? Yes, provided they have been stored properly, the can or package is undamaged, and there are no signs of spoilage (see below) - commercially canned mushrooms will typically carry a "Best By," "Best if Used By," "Best Before", or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the mushrooms will remain at peak quality.
To further extend the shelf life of opened canned mushrooms, freeze them: to freeze canned mushrooms, place inside covered airtight containers or heavy-duty freezer bags.
The texture of canned mushrooms will be softer after freezing and thawing; the thawed mushrooms will be best suited to cooked dishes, such as sauces, soups and casseroles.
How long do canned mushrooms last in the freezer? Properly stored, they will maintain best quality for about 2 months, but will remain safe beyond that time.
The freezer time shown is for best quality only - mushrooms that have been kept constantly frozen at 0°F will keep safe indefinitely.
How long do canned mushrooms last after being frozen and thawed? Mushrooms that have been defrosted in the fridge can be kept for an additional 3 to 4 days in the refrigerator before using; mushrooms that were thawed in the microwave or in cold water should be used immediately.
How can you tell if opened canned mushrooms are bad or spoiled? The best way is to smell and look at the mushrooms: if the mushrooms develop an off odor, flavor or appearance, or if mold appears, they should be discarded.
Discard all mushrooms from cans or packages that are leaking, rusting, bulging or severely dented.