General Technical Documents Grain Huller for Rice, Spelt Wheat, Quinoa, and Millet
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Allen Dong and Roger Edberg, I-Tech, Public domain, 1989.
Short grain rice can be hulled at a rate of 200 g/min. The percentage of rice hulled varies from 75 to 99% depending on the rice cultivars, the spacing between the stationary rubber disk and the rotating abrasive disk, and uniformit of spacing between the disks.