Portobellos are cultivated mushrooms that are the mature forms of crimini mushrooms. They are generous in size (up to 6 inches wide), meaty and robustly flavored. Their open gills and large, flat caps make them great when grilled for a sandwich or sliced for a salad or entrée.
Purchasing and Storing Mushrooms
Look for fresh mushrooms that are blemish-free, without slimy spots or signs of decay. When sealed in plastic, mushrooms quickly become slimy and moldy. Remove from carton and refrigerate, unwashed, in a paper bag. The paper absorbs excess moisture and allows the mushrooms to breathe. Or, remove plastic wrap from carton and wrap carton in paper towels.