PURPOSE: To execute secure cleaning by adding a dirty quantity by respective cleaning spots every time when drinks are sold and executing the indication of cleaning necessity when dirty accumulation attains a dirty limit quantity.

CONSTITUTION: Respective dirty accumulation to cleaning spots stored in a RAM 3 is cleared and next, sale is executed, a dirty quantity is added to the dirty accumulation of the cleaning spots respectively. It is discriminated whether autorinse is executed or not, when the autorinse is executed, the dirty accumulation of the cleaning spots by the autorinse is subtracted, it is discriminated whether the dirty accumulation is more than a dirty limit quantity to the respective cleaning spots or not and the display of cleaning necessity is outputted to a display 7 to the cleaning spots of which dirty accumulation is more than the dirty limit quantity. Thus, the time of cleaning can be indicated securely.