A method for producing a high density compact livestock feed from a loose granular material may include feeding distiller grain into a loading zone and passing the distiller grain into a heating zoned comprising one or more heaters and a rotating screw. The method further includes rotating the screw to transfer the treated material through the heating zone while increasing the compressive force applied to the treated material. The method may further include pressing the treated material through a compression enclosure that simultaneously applies a transverse force and a parallel force onto the treated material to form a high density compact body. The method may then include a cooling process and an extraction process.