PURPOSE: To properly agitate a drink to obtain good taste by using a DC motor for an agitating motor and impressing voltage corresponding to a powder material to the motor to change the speed of the motor to a value appropriate for the powder material.

CONSTITUTION: The title device is provided with plural voltage generating means, i.e. a transistor TR0 and Zener diodes 11 to 13, for generating respectively different voltages corresponding to the kinds of drinks and voltage selecting/ impressing means, i.e. a CPU 17, an I/O 20, TRs TR1 to TR3, and a opening/ closing line signal 10, for selecting the voltage generating means in accordance with the kind of a drink and impressing the voltage generated from the means to the DC motor 3A. In the case of a drink requiring much agitation, a rated voltage is impressed to the DC motor 3A to agitate the drink at a high revolution, and in the case of a drink requiring mild agitation, a voltage lower than the rated voltage is impressed to the DC motor to agitate the drink at an intermediate or slow revolution. Consequently, proper drink agitation corresponding to each drink can be executed.