The invention concerns a beverage dispenser comprising: a frame (1) for supporting the components of the dispenser, a whipper assembly (2) comprising a whipper 9b housing (21), a whipper device (22) and a back wall (23), the whipper housing and the back wall forming a whipper chamber (24) in which is lodged the whipper device, a drive shaft (3) for driving the whipper device (22), said drive shaft being supported by the frame (1), detachable connection means (4a, 4b) for attaching the back wall to the whipper housing, wherein it further comprises detachable connection means (5) for attaching the whipper housing to the frame.