Cooking Myths Debunked
True and false. Mushrooms are almost 90 percent water and very porous, so the key to washing them is to give them a shower, not a bath. “You can quickly rinse most mushrooms,” says Julie Petrovick of Modern Mushroom Farms, in Avondale, Pennsylvania. “Just don’t rinse to the point where they are soft.” Soaking mushrooms lets them absorb too much water; they’ll release excess liquid into your dish. For especially delicate varieties, such as oyster mushrooms, porcini, and chanterelles, stick to a special mushroom brush or a damp paper towel.