Cultivated mushrooms are common mushrooms with smooth, white circular caps. They are also called white mushrooms. Select firm, plump mushrooms that are not slimy or bruised. Store mushrooms unwashed-lightly wrapped in paper towels or in a paper bag, never in plastic-in the refrigerator.
To clean cultivated mushrooms:
Remove grit by wiping with a damp paper towel or mushroom brush. For a more thorough cleaning, swish the mushrooms very briefly in water, then pat dry with paper towels.For other mushroom varieties, see button, chanterelle, Chinese black, cremini, oyster, porcini, portobello, shiitake, straw, and tree ear mushrooms, and truffles.