The spear is pushed into the product to be tested in the closed condition. When the handle is rotated, the removal slots open in an offset order from bottom to top. These spiral openings ensure that the sample material does not mainly fall into the spear through the upper openings. The spear is open towards the rear in the handle so that all of the removed sample (400-600 g) runs out. The spear can be easily pulled apart for cleaning using an internal notch in the screw cap.