One embodiment described herein includes a method for extracting bran, endosperm, germ, and fiber from biomass comprising hydrating the biomass; extracting the bran from the biomass before extracting the germ; and extracting the endosperm, without a use of chemicals, based on a capacity of endosperm particles to selectively pass through, or be retained on a sieve having a standard hole size, wherein endosperm particles are extracted in one or more endosperm streams. The method also includes products extracted from biomass.