A method for measuring temperature using a temperature measuring device (11, 111, 211) for an electric appliance, including at least one temperature sensor (13, 113, 113', 213, 213') in the form of an electric resistor, to which at least two different measuring voltages (U ref1, U ref2) can be applied with cyclic switching between the measuring voltages, wherein the temperature sensor is connected to a control, which comprises a microcontroller (19, 119, 219) and which is configured for applying at least two different measuring voltages to the temperature sensor, wherein: - the control applies the at least two different measuring voltages (U ref1, U ref2) to the temperature sensor (13, 113, 113', 213, 213'), - the temperature sensor is subject to inherent heating by the applied measuring voltages (U ref1, U ref2), which add to the actual environmental temperature, characterized in that - the at least two different measuring voltages (U ref1, U ref2) are applied to the temperature sensor (13, 113, 113', 213, 213') with cyclic switching between the measuring voltages, - during operation with the at least two different measuring voltages (U ref1, U ref2) for the resistance sensor there is superposition of an inherent heating curve, which varies according to the measuring voltages applied, to the actual temperature to be measured, - the amplitude of the inherent heating is dependent on the measuring current and also on the temperature to be measured and on the environment of the temperature sensor (13, 113, 113', 213, 213'), respectively, - with low temperatures to be measured the amplitudes or peaks of the inherent heating curve are greater, and with higher temperatures are correspondingly smaller, - between an actual temperature curve or the temperature to be measured and the measured temperature curves there is a functional interrelation, with parameters thereof saved in a memory of the microcontroller (19, 119, 219), - for an exact temperature measurement the inherent heating is subtracted, which is done in the microcontroller (19, 119, 219) and, thus, the temperature is calculated exactly. - the control applies the at least two different measuring voltages (U ref1, U ref2) to the temperature sensor (13, 113, 113', 213, 213'), - the temperature sensor is subject to inherent heating by the applied measuring voltages (U ref1, U ref2), which add to the actual environmental temperature, characterized in that - the at least two different measuring voltages (U ref1, U ref2) are applied to the temperature sensor (13, 113, 113', 213, 213') with cyclic switching between the measuring voltages, - during operation with the at least two different measuring voltages (U ref1, U ref2) for the resistance sensor there is superposition of an inherent heating curve, which varies according to the measuring voltages applied, to the actual temperature to be measured, - the amplitude of the inherent heating is dependent on the measuring current and also on the temperature to be measured and on the environment of the temperature sensor (13, 113, 113', 213, 213'), respectively, - with low temperatures to be measured the amplitudes or peaks of the inherent heating curve are greater, and with higher temperatures are correspondingly smaller, - between an actual temperature curve or the temperature to be measured and the measured temperature curves there is a functional interrelation, with parameters thereof saved in a memory of the microcontroller (19, 119, 219), - for an exact temperature measurement the inherent heating is subtracted, which is done in the microcontroller (19, 119, 219) and, thus, the temperature is calculated exactly.