The invention relates to a device (1) for the treatment by a pulsed electric field of a product intended to circulate through this device, comprising first and second electrodes (4, 6) forming parallel plates between which a treatment zone (2), is defined, and also comprising a pulse generator (22) electrically connected to at least said first electrode (4) so as to be able to apply a pulsed electric field in the treatment zone (2), the device also comprising a product inlet conduit (26) into the treatment zone and a product outlet conduit (30).According to the invention, the first electrode (4) is electrically connected to the pulse generator (22) through either of the two conduits (26, 30), arranged in contact with this first electrode.
