An embodiment method includes coupling a first/second flow mouth of a main/secondary valve structure to a first/second compartment containing a selected base liquid/a selected combination substance, and transferring the first/second volume of the selected base liquid/selected combination substance from the first/second compartment via the main/secondary valve structure and a dosing valve to a bottle disposed in a bottling station. After the transferring the first and second volumes to the bottle, the method includes moving the bottle to a mixing station and mixing a content of the bottle to form the fluid mixture, closing the bottle in a closing station, sealing the bottle in a sealing station, and dispensing the bottle to a user.