A breakthrough in crystal glass: completely dishwasher safe, highly resilient, strong and brilliantly clear. A quantum leap in crystal glass. After long years of intensive research and development, in collaboration with the University of Erlangen, Schott Zwiesel has succeeded in creating a new type of crystal glass. The use of unique ingredients combined with an advanced manufacturing process, has created an incredibly pure, hard and clear crystal glass. A crystal glass that is highly resilient to dishwashers, accidental breakage and chipping. Tritan is a unique, patented crystal glass that sets new standards.