Abstract: Methods for generating a biomass product having a high volatile solid content, biomass products made by the methods, and apparatus for performing the method are provided. An exemplary method fractions an organic waste stream into a residual component and a biomass component, and the biomass component is further processed to reduce the sizes of the particles therein to produce the biomass product. The volatile solid content of the biomass product, in some embodiments, is at least 80% of a total solid content. An exemplary apparatus for generating the biomass product includes a separation drum, such as a Trommel screen, having a screen for passing the biomass component, and a grinder for further processing the biomass component to produce the biomass product.