The GET Enterprises (138-CO) - 8" x 5-1/2" Contemporary Japanese Series Plate should be handled like any fine dinnerware. For best results, use only non-abrasive plastic pads or plastic bristles to clean. GET products are dishwasher safe. However, avoid use of chlorine or chlorine-based detergents and bleach. Please consult your chemical specialist for the proper solution made specifically for use on melamine and other plastic products.