Techik rice color sorter Optical sorter ndikuchotsa mbewu zampunga zomwe zili ndi vuto kapena zosawoneka bwino pamtsinje waukulu wazinthu, kuwonetsetsa kuti mbewu zampunga zapamwamba zokha, zofananira, komanso zowoneka bwino zimafika pomaliza.Zowonongeka zofala zomwe wopanga mtundu wa mpunga amatha kuzizindikira ndikuzichotsa ndi monga mbewu zosenda mtundu, choko, zakuda, ndi zinthu zina zakunja zomwe zingasokoneze mtundu ndi mawonekedwe a mpunga womaliza.