Made with a unique patented process; Thickness: 3.25 mm | Gas Stovetop Compatible. Dishwasher Safe : No | High quality non-stick coating (made in Germany) | Locked firmly into the tough hard anodised surface underneath | Made with a unique patented process. Plastic Handle | Gas Stovetop Compatible. Dishwasher Safe: No | High quality non-stick coating (made in Germany) | Locked firmly into the tough hard anodised surface underneath