The High Gloss finish is one sign of a high quality product. The High Gloss is created by a high polish of the mold used to make the silicone. This is an expensive process but insures a smooth, non-porous surface to enhance non-stick properties. Silicone has inherent non-stick properties without adding any additional coatings, however, we always recommend following the recipe’s directions for greasing or flowering. Butter, Sprays, Solid Shortenings and Oils are all fine to use with our bakeware.