Developed just for Sur La Table in Pittsburgh, PA, by USA Pan, our commercial-quality jumbo muffin pan meets the highest standards for performance and durability. Each piece in this collection is constructed with the same features found in the best pans in the industry. Thick aluminized steel offers superior heat transfer, resistance to corrosion and rust, and excellent durability. Each pan’s thickness is based on years of performance data to deliver perfectly even heat distribution and a lifetime of use. Steel wire is added to pan rims for extra strength and resistance to warping. Our Platinum bakeware is manufactured with 65% recycled steel. Unique fluted design with corrugated construction maximizes strength and impact resistance, and resists warping and denting that can occur with use. Textured surface allows airflow under baking food for beautifully even overall results and easy release every time. In addition, our eco-friendly nonstick silicone coating is specifically formulated for baking and contains no PTFEs or PFOAs. The most advanced coating available; no other surface releases food and cleans up more easily. Hand wash with warm water and mild detergent using a sponge or nylon pad. Rinse and pat dry thoroughly. Use only silicone, nylon or wooden tools. Do not cut in the pan or use sharp metal utensils. Do not heat beyond 450°F. Wash before first use. Makes six jumbo muffins or cupcakes. Pan measures 15¾" x 11" x 2". Made in the USA.