How does an air-bake baking sheet work to cook things evenly?

An air-bake baking sheet features a double-layer construction with an air pocket between the layers, which helps to insulate and distribute heat evenly. This design reduces the direct contact of the food with the hot metal, minimizing the risk of burning while promoting uniform cooking. The trapped air circulates, allowing for consistent temperatures across the surface, resulting in evenly baked goods. As a result, cookies and other items tend to brown and cook more uniformly compared to traditional baking sheets.