The perforation allows air to circulate around the bread creating a beautiful golden crust. The metal thickness of this pan has been selected to allow for even heat distribution and maximum service life. This pan is coated with Americoat. It provides a clear, non-stick, non-toxic baking surface, specially formulated for superior baking. It's FDA approved; it does not contain PTFE's or PFOA's. It is not recommended to exceed baking temperature of 400 degrees F. Easy care. To clean, simply wipe clean after use; soap and water are okay to use. It is not recommended that pan be washed in dishwasher because harsh chemicals can cause the non-stick material to breakdown in time. Dry pan completely, after cleaning. Pan measures 40.6cm by 21.6cm and bakes 2 baguettes at a time. USA Pans is the newest line of bakeware developed by American Pan, the world's largest manufacturer of commercial bakeware. Pans are made of 65% recycled steel. Made in Pittsburg, Pennsylvania, USA.