Abstract: A gas cooktop includes a gas supply control controlling flames applied to a cooking vessel through a control circuit connected to an infrared sensor that is directed at an infrared-radiation-generating outer surface region of the cooking vessel and receives temperature-related information from the surface of the vessel.

Abstract: A gas cooktop includes a gas supply control controlling flames applied to a cooking vessel through a control circuit connected to an infrared sensor that is directed at an infrared-radiation-generating outer surface region of the cooking vessel and receives temperature-related information from the surface of the vessel.

Abstract: The sensor-controlled cooktop has a cooktop plate, in particular made of glass ceramic, with one or more defined cooking zones that can be heated with a heating element arranged below the cooktop plate. A heat radiation sensor unit is also arranged below the cooktop plate and is directed toward the underside of the latter in the region of a measuring spot of limited area. The sensor unit is connected to a control unit for regulating the heat output of the heating element. In order to achieve as accurate a regulation of the heat output as possible independently of the pot, there is provision, according to the invention, for the value of the transmittance of the material of the cooktop plate, at least in the region of the measuring spot, to be, at least in the spectral measuring range of the heat radiation sensor unit, lower than 30%, preferably lower than 10% and, in particular, approximately 0%.