Superior materials, methods of manufacturing, and overall design features combine to make the rectangular pan the one you depend on for all of your cake baking needs. The pan is constructed of aluminized steel crafted with a textured surface that promotes better air circulation. The result is even baking, excellent heat distribution, and shorter baking times. A clear silicone coating gives the pan its non-stick, non-toxic, and environmentally friendly qualities. Made from 65% recycled steel, this 9" x 13" rectangular cake pan will withstand oven temperatures up to 450 degrees. It should be used with only silicone, nylon, or wooden utensils, and should be hand washed.