Abstract: A method for controlling a hot beverage preparation device, in particular a hot beverage machine for household use. The device has a heating system, at least one temperature sensor downstream of the heating system, a pump for conveying water within the preparation device, a control unit for controlling the heating system and the pump. The novel method includes the steps of subjecting the heating system to electric power, detecting a change in temperature downstream of the heating system after a defined period of time has passed, evaluating the detected change in temperature by comparing it to a target value, and outputting an error message or continuing/initiating a brewing process.

Abstract: A hot-beverage preparation device, in particular such a machine for household purposes, has a heater for water, a pump for conveying the water in the preparation device, a temperature sensor for detecting the temperature of the water downstream of the heater, and a control device for controlling the heater and the pump. A method for controlling the hot-beverage preparation device is developed by the following steps at the end of a brewing operation: a) detecting the temperature of the preparation water, b) heating the water, c) until steam is generated.