Lid for closing a processing container

The invention is directed to a lid (2) for closing a processing container (1). Provided in the processing container (1) is a spigot (4) for receiving a rotary processing tool (5) for comminuting food materials. The processing tool (5) has at its free end close to the lid (2) a first coupling member (18) adapted to be coupled to a second coupling member (17) of a driven shaft (10) when the lid (2) is placed on the processing container (1) for closing. The driven shaft (10) extends outwardly through a bore (9) in the lid (2) and has at its outer free end a third coupling member (27). The third coupling member (27) is adapted to be coupled to a fourth coupling member (33) of a drive shaft (31) of an electrically powered drive mechanism, in particular a hand-held mixer or immersion blender. An annular space (23) is formed between the outer diameter of the section (21) of the driven shaft (10) extending through the bore (9) and the bore (9).