ITI 314 Mug, 18-Ounce, 24-Piece, Clear Item is dishwasher-safe; when bussing table place glassware directly into divider racks and use correct glass rack in dishwasher Versatile for both dinning room and bar; always dump ice and let glass reach room temerature before washing When washing items allow clean ware to air dry for several minutes in a well ventilated area Always have plenty of backup glass for busy periods and never scoop ice with glass Avoid the contact between the glassware when storing; avoid the contact between the glassware when storing