MASTERCLASS'S TOUGHEST BAKING SHEET: for years of baking and roasting in home or commercial settings DOUBLE-LAYERED DESIGN: it traps air for even heat distribution - crucial for heat-critical bakes SUPER-STRONG CARBON STEEL, with a protective vitreous enamel finish, so it won't buckle or scratch USEFUL INFO: it's easy to clean and dishwasher safe TRUSTED SINCE 1850: includes MasterClass's 25 year guarantee View Full Details Robust with a hard wearing vitreous enamel finish, this MasterClass Professional Baking Sheet takes the effort out of baking cookies and biscuits. This double layered baking sheet is made from 1 mm thick steel, which is coated with a premium performance coating of vitreous enamel. It's incredibly tough and boasts excellent heat conducting properties. Unlike sheets of a lower quality, it absorbs and distributes heat more evenly. There are no hotspots, which helps you to consistently achieve baking excellence.