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 1.5 mm, and which is transmitted onto the capsule (22). The result is an intensive mixing of the powder with the water.