PURPOSE: To eliminate the need to change a stirring container and to save the reconstruction cost of the automatic vending machine by carrying out a powdery raw material and hot water divisionally plural times within the permissible capacity of the stirring container when an amount for one cup is larger than the permissible capacity of the stirring container.

CONSTITUTION: When drink is specified, a computing element 8 reads various set time values as to the drink which are set in a setter 10 and finds the total amount of the drink from hot-water carrying-out set time. When this amount exceeds the permissible capacity of the stirring container 3, the powdery raw material 1a and hot water 2a are carried out divisionally plural times so that the total amount of the powdery raw material 1a and hot water 2a of each time after mixing does not exceed the permissible capacity of the stirring container 3. Consequently, even when an amount for one cup exceeds the capacity of the stirring container 3, the stirring container 3 need not be replaced and the reconstruction cost of the automatic vending machine can be saved.