Made from tempered soda lime glass, KeepCup Brew is designed for a premium beverage experience. Take the caf experience with you at home, to work or on the move. – Design your own KeepCup colour combination and make your KeepCup unique. – Dishwasher safe on the top shelf.– Lid off can be heated to 100C/ 212F degrees.– Made from toughened soda lime glass not unbreakable, but surprisingly durable.