Premium Corrugated Paper Panettone Mold. Proven to be oven-safe up to 390 degrees Fahrenheit, they are also microwave and freezer safe. Made out of pure cellulose virgin paper not recycled not coated with micro-perforation to release excess humidity. There is no need to worry about leakage. No greasing is required for easy release. Great for: quick bread, cake, bread, and coffee cake. Molds comply with FDA requirements and are approved for food use.