What type of glass does Grosche use in their teapots? It's not leaded or anything with toxic substances is it?
Answer: Medical grade borosilicate glass. No harmful substances of any kind in the glass used for making Grosche Teapots, Stovepot teapots, infuser teapots, or any other of the several kinds they manufacture. The medical grade borosilicate glass used is also heat proof to prevent breakage while using for making of tea.