Abstract: A hob (1) consisting of a sheet (2) of tempered glass for kitchen appliances, wherein said sheet of glass (2) has holes (3, 4) with shaped edges, such as to create raised parts or protrusions (5) which rise above the surface of said sheet of glass (2).
Preparation of the hob (1) comprises heating of said sheet (2) to the softening temperature of glass, after creation of the holes (3, 4),. In this manner said raised parts (5) arc formed and the microcracks that are generated during creation of the holes in the sheet of glass are also eliminated.