The cake pan surface is coated with AMERICOAT® , a non-stick silicone, allowing you to easily remove your baked goods from the pan. The non-stick feature makes clean-up truly effortless. AMERICOAT® is made without PTFE, PFOA and BPA. USA PAN® has been designed with the same standard high performance features that commercial bakers enjoy including aluminized steel and heavy gauge steel construction that allows for even heat distribution and maximum service life. USA PAN® 9 Inch Square Cake Pan's unique fluted surface design facilitates air circulation and also maximizes pan strength, which helps to resist warping.