Rice hulls are often burned in biomass plants to produce energy or incorporated into animal feed. Brown rice is packaged and sold. Place several kernels of brown rice on the sandpaper and lay the second piece of sandpaper on top. Rub the two sheets of sandpaper together for 3-5 minutes. The powdery residue left on the sandpaper is the rice bran.
Rice bran is used as an additive in several different food products.