Patent ID: 7488515

Claim:
A method for making cookware having a non-stick surface, comprising the steps of: (a) providing a substrate in a desired cookware configuration; (b) preparing a surface of the substrate to remove dirt, grease, or other surface impurities; (c) applying a metal-ceramic layer to the prepared surface of step (b) to provide a controlled porosity of between about 5-15% by volume in said metal-ceramic layer and having a plurality of upstanding peaks; (d) vacuum impregnating pores of said metal-ceramic layer with a liquid release agent; (e) thermally curing the impregnated liquid release agent; and (f) smoothing the impregnated metal-ceramic layer by removing the upstanding peaks of metal ceramic to provide a non-stick surface defined by flat bare metal-ceramic portions and flat impregnated cured release agent areas substantially co-planar therewith.