Bali beverageware is made of high quality polycarbonite, a remarkable material that enables them to produce hand finished beverageware products with the clarity and elegance of glass. Strahl beverageware can be chilled in the refrigerator or freezer, with superior insulation properties keeping beverages at optimal drinking temperature for longer. Strahl beverageware does not shatter, making it an ideal and extremely safe alternative to glass. All Strahl products undergo a unique finishing process to extend the lifespan and durability of the product. Dishwasher Safe-Strahl beverageware is safe for commercial dishwashers on either a high or low temperature cleaning operation with ease.