In a traditional soy milk plant the slurry leaving the grinding and cooking stage carries between fifteen and twenty five percent dry matter, most of it insoluble okara pulp. Screw presses and rotary screens recover part of the soy milk from this pulp, but the cake that leaves them still contains around eighty percent water, which means a large proportion of the soluble protein and solids is carried away with the waste. The HD-DEC-420 decanter centrifuge replaces that