The invention concerns a method for decontaminating berries, in particular wheat berries, by contacting the berries with a decontaminating solution, characterized in that the solution comprises at least one decontaminating agent selected among the group consisting of acetic acid, propionic acid, their precursors and mixtures thereof. The structure of the invention includes a R. The Q-switch is controlled by the high-frequency wave in such a way that laser pulses with pulse lengths on the order of magnitude of several microseconds and with an energy content on the order of magnitude of several millijoules can be generated by controlling the steepness of the edge of the modulation function of the high-frequency wave. The partial correlation results for each phase delay and at each Doppler frequency are stored in corresponding memory locations in a coherent accumulation RAM. The repository is configured for receiving and storing the receiver information generated by the digital radar processor.