The subject matter of the present invention is a method for treating pourable products made of particles which can be separated, preferably seeds (2), with accelerated electrons. During the method, a transparent product flow is guided, using gravity, in a product guiding channel (1) through the electron field generated by at least one electron accelerator (12) under low pressure or excess pressure. The product flow is guided by means of an accelerated gas flow (5) in such a way that the movement thereof corresponds in magnitude and direction to the accelerated movement, which the falling particles execute in said gas flow due to gravitational acceleration. In addition, a device is disclosed which realizes the acceleration of the gas flow (5) in the required way through the shaping of the product guiding channel (1).
