How To Clean Mushrooms Before Cooking | Wash or Brush?

Quickly rinsing mushrooms under cold water and drying them in a salad spinner removes grit more effectively than brushing.

You have probably heard the warning for years: never wash mushrooms because they act like tiny sponges and turn into slimy, waterlogged disappointment. The advice feels intuitive — mushrooms do look porous, and who wants a sad, soggy sauté?

The truth is more forgiving. Food scientists and test kitchens have run the numbers, and a fast rinse followed by thorough drying works perfectly fine for most mushrooms. The real trick is not in whether you wash, but in how you handle them after.

The Two Camps: Washing vs. Brushing

Two respected food publications land on opposite sides of this debate. Bon Appétit recommends brushing mushrooms with a dry cloth or a dedicated mushroom brush, arguing that water risks making them slimy and ruining the sear.

Serious Eats, on the other hand, suggests the opposite: a quick rinse under cold running water followed by a spin in a salad spinner. Their testing showed that brushing leaves grit behind, while washing removes it far more effectively.

Neither approach is wrong. The best method depends on how dirty your mushrooms are, how soon you plan to cook them, and which texture you prefer. Both work if you follow the right steps.

Why The “Never Wash” Advice Sticks

The fear of waterlogged mushrooms has real roots, even if the danger is often overstated. Here is what drives the caution:

• Mushroom structure mimics a sponge: The cell walls are loose, and a long soak lets water slip inside. But a rinse of a few seconds under running water is not a soak — surface tension keeps most water on the outside.
• Chefs prioritize browning: Wet mushrooms steam instead of sear, so professional kitchens often avoid washing to guarantee a golden crust. Home cooks can get that same browning after drying thoroughly.
• Old cookbooks passed down the rule: Decades ago, cookbook authors repeated the “never wash” mantra without testing it. Later kitchen science from sites like Serious Eats showed the rule was overly cautious.
• Visible water beads look alarming: After rinsing, water clings to the cap. Without a spinner or towel, that moisture stays — and causes the very sogginess people fear. The fix is easy: dry them.

The takeaway is that the advice matters less than the execution. A fast rinse plus aggressive drying is fine; a 20-minute soak is not.

How to Clean Mushrooms With Cold Water

The Serious Eats testing confirms that wash mushrooms in cold water removes grit better than any brush. The key is speed: run them under the tap for a few seconds, rubbing gently with your fingers, then stop.

Do not let them sit in a bowl of water. A soak pulls liquid into the stems and caps, creating the exact waterlogging you want to avoid. After rinsing, a salad spinner is the most effective tool — a few quick spins remove surface moisture in seconds.

Once the mushrooms are dry, cook them immediately. Any remaining water will evaporate quickly over heat, and you will get good browning without steaming. Trim the stem ends either before or after rinsing; the choice is yours.

Each method has trade-offs, but the rinse-and-spin approach consistently ranks highest for cleaning power while keeping texture intact.

How to Clean Mushrooms With the Dry Brush Method

The dry brush approach is the method many chefs prefer, especially for mushrooms that are only lightly soiled. It is gentler and guarantees zero added water, which can matter for certain delicate preparations like raw slicings or quick sautés where every drop counts.

1. Use a soft brush or paper towel: A dry pastry brush, a dedicated mushroom brush, or a folded paper towel all work. Gently sweep or wipe the cap and stem to loosen dirt.
2. Focus on the gills and stem base: Dirt often hides in the gills of portobellos and at the trimmed stem end. A soft brush can reach those crevices without crushing the mushroom.
3. Trim the stem end after brushing: Cut off the dry, woody tip — it often holds residual soil that brushing missed. This also freshens the appearance.
4. Cook right away: Brushed mushrooms can sit a few minutes, but they will dry out if left too long. Ideally, clean them just before they hit the pan.

The dry method works beautifully for mushrooms that are mostly clean, like pre-packaged cremini or button mushrooms. For mushrooms with visible dirt patches, a rinse is more reliable.

Tips for Different Mushroom Varieties

Not all mushrooms need the same treatment. Button and cremini mushrooms are usually grown on sterile compost and arrive fairly clean — a dry brush is often enough. Portobellos, with their broad caps and exposed gills, often hold hidden grit that requires a rinse.

Wild mushrooms — chanterelles, morels, porcini — are a different story. They grow in soil and forest debris, so they can be heavily soiled. Some cooks even peel the caps of large wild mushrooms after rinsing. Bon Appétit’s test kitchen advises that brush mushrooms with dry cloth for light dirt, but for wild varieties, a rinse is typically needed.

The more delicate the mushroom, the more careful you need to be. A soft rinse and a gentle spin in the spinner prevent the caps from breaking. For woody-stemmed varieties like shiitake, remove the stems before cleaning — they can be tough anyway.

The Bottom Line

There is no single right way to clean mushrooms. If your mushrooms are lightly soiled, a dry brush preserves every drop of texture. If they are caked in dirt or you simply want the fastest path to grit-free cooking, a quick cold rinse followed by a salad spinner is just as effective and far more thorough. In both cases, cook them soon after cleaning for the best browning and flavor.

For the best results with your next mushroom-heavy recipe — whether it is a simple sauté or a rich risotto — pick the method that fits how much dirt you are dealing with and how soon you plan to cook. Your skillet will tell you if you nailed it.