How to Store Mushrooms

Updated: Feb. 15, 2024

The secret to fresh, flavorful fungi is knowing how to store mushrooms the right way.

Mushrooms are the umami bomb of the produce department, enhancing almost any dish with savory, earthy flavor. Given the rise in prices for fungi, we all want to understand how to store mushrooms to keep them fresh. It’s frustrating when mushrooms get dry or slimy before being used. Thankfully, keeping them fresh is easy when you know the right steps.

How to Store Mushrooms in the Fridge

Cardboard containers of white mushroom. Wooden board. Light effect. High point of view.annick vanderschelden photography/Getty Images

To keep mushrooms fresh, keep them cold. The chill of a refrigerator helps suspend the decomposition of these capped friends, which is why you’ll find all kinds of fungi in the refrigerated section of the produce department. Unlike potatoes and onions, your ‘shrooms should make a swift trip to the crisper drawer of your refrigerator.

The plastic wrap at the market is murderous to your mushies. The thin plastic clings to the ‘shrooms, which doesn’t allow air to circulate around them, and the paper bags some stores offer allow them to dry out too quickly.

Once home from the market, transfer your unwashed ‘shrooms to a zip-top bag, with a folded paper towel in the bag to capture moisture—or a covered storage container with a drainage tray. Open the bag or container every day or two, to allow CO2 out and fresh air in.

How to Tell If Mushrooms Are Bad

Run through this checklist to see if your portobellos (and others) are past their prime:

  • Signs of discoloration, like dark spots or mold growth
  • Musty or unpleasant smell
  • Feels slimy or mushy when gently squeezed

If your mushrooms have dark spots, mold, a funky smell or a slimy texture, throw them out.

Traditional button mushrooms usually last 7 to 10 days if they are unwashed and whole. Sliced mushrooms have a shorter life, 3 to 4 days, and more fragile mushrooms like chanterelles really only have a day or so before they aren’t good for fresh cooking.

Should you wash mushrooms?

No, washing them is a major mushroom mistake! Mushrooms stay fresher longer when dry. For that reason, ‘shroom hunters do not wash the fungi before they go to market, but instead just brush them off. Moisture will immediately begin to speed up the decomposition of the ‘shroom.

Just before you prepare mushrooms, dust them off with a mushroom brush or dry paintbrush. If your buttons or creminis are extra dirty, wash mushrooms like Josh Rink in the Test Kitchen does: “I typically wipe off my ‘shrooms with a damp paper towel and call it a day,” he says.

You can also rinse them quickly under cool water and pat them dry.

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