The grain processing workflow begins with the pre-cleaner, which removes large impurities, dirt, light chaff, and surface dust from the raw grain batch. Next, the grain moves to the destoner, which utilizes specific gravity to separate and discard heavy stones and glass that are equal in size to the grain. The cleaned grain then passes to the gravity separator, where it is graded and sorted by density to divide high-quality, plump seeds from damaged, insect-eaten, or underdeveloped ones. Finally, the sorted grain reaches the packaging unit.