PURPOSE: To obtain a sufficient mixing effect and to eliminate such state as to leave raw material powder with melting by adjusting hot water from a fist nozzle which is large in nozzle diameter and a second nozzle which is small in nozzle diameter by controlling a valve with a control part.

CONSTITUTION: When the control part 12 decides that a column specified by execution column information F is the one hard to melt and using pre-mixed raw material powder, a pinch valve 11 is maintained at a closed state, and injection from a first nozzle 9 is prohibited, and the quantity of hot water 2 required for one time of sale is splashed and injected vigorously from the second nozzle 10 small in nozzle diameter to the bottom 1a of the cup. Therefore, in the case of using the column using the pre-mixed raw material powder, the hot water 2 is splashed and injected to the cup 1 more vigorously than the case where the column using post-mixed raw material powder is used, and turbulent flow C in the cup 1 is intensified though bubbling is observed. In such a way, a sufficient stirring effect can be expected.