Abstract: A dry, one pass processing method for obtaining pre-process liberated fractions from a corn or other cereal kernel, including moisturizing (S1) the corn bran layer by a mist of small droplets of water, comminuting (S2) the corn kernel with a comminution reactor having a spinnable shaft and two or more processing chambers, separated by segmented plates, wherein each processing chamber comprises one rotor discs attached to the shaft and one or more vortex generators placed in a side wall apex corner of the processing chambers, wherein the corn kernel is fed into the comminution reactor and small and large bran sections, whole and broken germ, soft endosperm, and medium and large hard endosperm fractions are liberated from the corn kernel by means of a chaotic non-linear flow of the corn kernel and the liberated products generated in the processing chambers.