Oyster mushrooms are usually cleaner than other types of mushrooms and have less dirt clinging to them. However, it's still a good idea to clean them before consuming. You have two options. You can brush the mushrooms off with a dry or damp paper towel. Or, for a more thorough cleaning, hold the stems and swish the caps in a bowl of water. Shake excess water from the mushrooms then use a towel to blot the mushrooms mostly dry.
Trimming and Prepping
Oyster mushrooms are sold in clusters of attached mushrooms that can be gently pulled apart into individual mushrooms. You can also use kitchen shears to snip the mushrooms free. Once separated, you can leave the individual mushrooms whole, or tear them into pieces or slice them with a knife.
Roasted Oyster Mushrooms
To roast the mushrooms, follow my recipe for roasted oyster mushrooms with garlic and thyme.