Duralex glassware, the mainstay of bistros and taverns in Europe, withstands the rigors of constant use. Duralex owes its birth to the industrial patent for molded, tempered glass, developed in 1939 in the La Chapelle Saint-Mesmin factory. This industrial process gives glassware perfect transparency and lasting clarity, and makes it practically unbreakable. The tempered glasses are equally suitable for cold or hot drinks, conveniently stackable, impact and chip resistant, microwave-proof and dishwasher-safe. Duralex is the only glass manufacturing company that manufacturers all of its products in France.