Techik rice colour sorter optical sorter is to remove defective or discolored rice grains from the main product stream, ensuring that only high-quality, uniform, and visually appealing rice grains make it to the final packaging. Common defects that a rice color sorter can identify and remove include discolored grains, chalky grains, black-tipped grains, and other foreign materials that might affect the quality and appearance of the final rice product.