Everyone needs a 9 x 13-inch (23 x 33cm) cake pan. Professional pastry chefs and bakeries bake on aluminium for consistently perfect results. You can do the same with Nordic Ware's commercial-quality Naturals Bakeware. Made of pure aluminium, this premium pan will never rust or warp. It will give you evenly browned baked goods every time. This pan comes with a plastic lid for added functionality by sealing in freshness and making transport simple. Bake, store and transport. Caring for your pan Before initial use and after subsequent uses, hand wash with warm, soapy water. Dishwasher use is not advised, as it will shorten the life of the non-stick on your pan and produce discolouration on exposed aluminium surfaces. This discolouration is merely cosmetic and will not affect baking. Safe for use with nylon, wood or silicone utensils. Metal utensils, sharp knives and scouring pads will scratch the non-stick on your pan and are not recommended.