A straining device (1), in particular, for application with a kitchen appliance, comprising a dished sieve part (2) with a dish base (5) provided with through openings (4), a dish sleeve (6) enclosing the dish base in the form of a collar, a straining tool (3) with a hub piece (8) which may be coupled to a drive shaft in order to rotationally drive the straining tool (1) about a rotational axis (A), running in the longitudinal axis of the dish sleeve (6) and at least one straining blade (11, 12) running radially outwards from the hub piece (8). The dish sleeve (6) comprises at least one slot-like section (7) on the inner side around the circumference thereof, which has a greater separation from the rotational axis (A) than another section on the inside of the dish sleeve (6). The leading edges (15, 16) of the straining blade (11, 12) in the direction of rotation are provided at least partly with a first cutting edge, in order to comminute material for straining. According to the invention even straining material (1) with solid components such as ripe tomatoes can be strained with the claimed straining device.