For the purist, seekers of clarity. Made from tempered soda lime glass, KeepCup Brew is designed for a premium beverage experience. Take the cafe experience with you at home, to work or on the move. Made from toughened soda lime glass, not unbreakable, but surprisingly durable. CARE INSTRUCTIONS - Dishwasher safe on the top shelf. - Lid off can be heated to 100C/ 212F degrees. REPLACEMENT FOR... Disposable cups! According to research, approx. 2 million disposable coffee cups are currently sent to landfill sites in Ireland every day and we don't want you to be part of that dirty statistic!