Duralex is a French factory that manufactures glass using a technique that was already developed in the 1930s. Pressed glass is heated to 600 degrees and then cooled very quickly, which hardens the glass so that it becomes twice as strong as normal glass. Fun fact: The name comes from the Latin motto: Dura Lex Sed Lex ("The law is hard, but it is the law")!
Duralex glass is extra hard, in fact twice as hard as normal glass, as it is manufactured using a special technique that was developed in 1930: The cast glass is heated to 600 degrees and then cooled very quickly, which makes the glass twice as resistant as a normal glass.
The gigogne glass is one of their most iconic products, and it can even be found at the Musée des Arts Décoratifs in Paris. It was originally used in the French primary schools - when talking about hardiness! We love the glass here at Dora. The fine shape fits all tables and is lovely to use for both cold and hot drinks.