Stage 1 processing occurs at the rice mill. As soon as the bran and germ are removed from the kernel, NutraCea proprietary equipment begins the process of stabilization. A combination of heat, water, and pressure are used to deactivate the enzymes that cause rancidity in the rice bran. The stabilized rice bran is dried and packaged for shipment.

Stage 2 processing uses the stabilized rice bran from the stage 1 processing. Water and enzymes are added to the stabilized rice bran. The slurry is processed in a centrifuge to separate the insoluble fiber fraction, called RiFiber™, and soluble water dispersible fraction, called RiSolubles®. The products are dried and packaged in either bulk containers for finished food manufacturers and humanitarian relief or in canisters for retail consumer sales. A third product of the Stage 2 process, RiBalance™, is extracted prior to the centrifuge process. RiBalance contains both the insoluble and soluble extracts, but in a more bioavailable form.