Almost everyone has Barbara Benz's favourite piece at home: the vegetable bowl made of fireproof "Jenaer Glas". "It always pleases me to see how surprised visitors are when they discover "their" vegetable bowl in our GLASMUSEUM WERTHEIM", reports Barbara Benz. The bowl is made of borosilicate glass. "The glass was actually intended for laboratory purposes, as it -a revolution in glass technology-, withstands both heat and cold," the research assistant explains further. Wilhelm Wagenfeld, artistic director at Schott, used these properties to design usable household tableware for mass production. This includes the vegetable bowl designed in the 1930s: for baking in the oven, for serving on the table and for storage in the refrigerator.