Patent ID: 8245628

Claim:
A coffee machine, comprising an electric continuous flow heater for heating water, which is transported from a storage tank by means of a pump and is conducted under pressure after the heating process into a brewing chamber to prepare the coffee, said brewing chamber comprising an outlet nozzle for discharging the prepared coffee, the coffee machine comprising at least one sensor for recording an electric measured value that correlates to the temperature of the heated water and a control system for controlling at least one of the pump output of the pump and the heating output of the continuous flow heater depending on the electric measured value, at least one of the pump output and the heating output being shut off by the control system and with a restart blocked for a predetermined blocking time period under control of the control system by activating blocking elements when the electric measured value exceeds predefined limits, wherein the predetermined blocking time period comprises a predetermined minimal blocking period, the control system being programmed to unblock the restart after at least the predetermined blocking time period has elapsed without disconnecting a current source.