High-Grade Borosilicate Glass 100% Lead Free
Each Stone & Mill Glass set starts life as a single tube of high-grade Borosilicate glass. Unlike crystal glassware which by definition must contain at least 20% lead, Borosilicate glass is 100% lead free.
Master Glass Making
Heated over the hottest part of a naked flame, each tube is carefully expanded using human breath and the careful eye of a master glassblower. Slowly and steadily, the tube expands and is shaped into the beautifully crafted glass you see here in the photos.