Ceramic, glass, plastic, etc., dishes, cups, cookware, etc., that are oven and/or microwave safe should have this fact written somewhere on the actual items themselves. Plastic dishes that are designed for only a single microwave use should clearly indicate this fact on the dish itself. Plastic dishes should be labeled to inform consumers whether or not they are microwave safe. Dishes or trays intended for single use in a microwave should be labeled as such.