What are 2 separating techniques used in the production of rice?

Two common separating techniques used in the production of rice are threshing and winnowing. Threshing involves mechanically or manually separating the rice grains from the stalks and husks. Winnowing follows this process, where the lighter chaff is removed from the heavier rice grains by using wind or air currents to separate the two. These methods ensure that the rice is clean and ready for milling.