Teeth whitening info

A decorticator (from Latin: cortex, bark) is a machine for stripping the skin, bark, or rind off nuts, wood, plant stalks, grain, etc, in preparation for further processing.

Quoted from Hemp - American History Revisited by Robert Deitch copyright 2003 Algora Publishing

… because of the 1917 introduction of a machine designed by George Schlichten, known as the “Decorticator.” The Decorticator separated the long hemp fibers from the pulpy celluloid (hurds) center of the hemp stalks, dramatically reducing the exorbitant labor costs associated with cleaning and preparing hemp for further processing.”