A material processing machine having a reducing system for material reducing operations is disclosed. The reducing system includes a rotor having processing tools to reduce the material within a reducing chamber. A colorizer system includes a manifold positioned adjacent a screen defining a plurality of apertures for directing colorant from a colorant source through the apertures towards the reducing system. The material reducing operations include a two-stage reducing operation with selectively interchangeable screens that incrementally reduce the material to provide substantially uniform colorizing and material size.