Patent ID: 8499963

Claim:
A cooking utensil comprising: a metal substrate having a concave inner face intended to be arranged on a side in which food is to be placed in the utensil and a convex outer face intended to be arranged towards a heat source; a hard base coating on the inner face; and a non-stick coating covering the hard base, the non-stick coating comprising at least one layer comprising at least one fluorocarbon resin alone or in a mixture with a heat-stable binder resin resistant to at least 200° C., the non-stick coating forming a continuous sintered network, wherein the hard base is a rough layer of enamel containing less than 50 ppm lead and less than 50 ppm cadmium, having the following characteristics: a hardness greater than that of the metal or metal alloy forming the substrate, a melting point between that of the metal or metal alloy forming the substrate and that of the sintered resin(s) of the non-stick coating, and a surface roughness of between 2 and 50 μm.