Abstract: The invention relates to a method for producing a mixed drink, wherein a capsule (22) enclosing a powder-filled volume (27) is inserted into a receptacle of a mixing device, and is opened by closing a lid of the receptacle, and as a result, a cover film (26) of the capsule (22) is pierced by several hollow needles (12, 14). To this end, pressure is exerted thereon by means of a punch (9), which causes the piercing of a closure film (25) above an outlet (24) via mixing rods (32) and via skewers (29) arranged in the volume (27). Water is then injected through a portion of the hollow needles (12), and the mixture is discharged through the outlet (24). After a pause or introduction of air under positive pressure by means of a further hollow needle (14), water is injected again, and finally, air is introduced once again. During the entire process, the receptacle is put into a vibration by an electric motor via an eccentric pin, the frequency of which is about 42 Hz, and the amplitude of which is about 1.