Heartland Bakeware is a manufacturer of a new, patent pending, brand of Anodized Bakeware. Anodizing is a process that hardens aluminum. It offers tremendous performance and durability. It attracts the oven heat for faster baking and with the AireGourmet insulated baking sheet, offers perfect baking results without burning. The durable surface is also safe and healthy to use. There is no transfer of aluminum residue to foods. There is no nonstick coating to wear off. And it won't rust. It's designed to last a lifetime.