The number one reason people tell you not to wash mushrooms is a terrifying one: they’re like sponges. If you dunk them, the critics claim, they’ll soak up all the water like a dehydrated camel and become sad, gray, rubbery blobs. You’ll lose flavor. The horror!
But here’s the surprise fact that will blow your kitchen mittens off: Mushrooms are already 92% water. That’s more water than a cucumber. They’re not thirsty sponges; they’re leaky, slimy balloons. A quick rinse adds maybe a teaspoon or two of moisture, which will evaporate in the pan faster than your New Year’s resolutions.
So no, you aren’t “diluting the flavor.” The flavor is trapped inside the cell walls, not floating on the surface like a lonely canoe. Unless you plan to bathe them for an hour, you’re fine.
