Zwiesel Glas was founded in 1872 in the Bavarian Forest, Germany, a region known for its long tradition of glassmaking. The company produces crystal drinkware and table glasses used in homes and hospitality environments. Zwiesel Glas is recognized for combining traditional glassmaking expertise with modern manufacturing technology. One of its key innovations is TRITAN® crystal glass, a lead-free material developed for durability and resistance to chipping and scratching. The brand is part of the Zwiesel Fortessa Group, which also includes Fortessa tableware and tabletop accessories.