Hand polishing: The method of hand polishing is simple, which consists of rubbing turmeric fingers on hard surface or trampling them under feet wrapped in gunny bags. The improved method is by using hand-operated barrel or drum mounted on a central axis, the sides of which are made of expanded metal mesh. When the drum filled with turmeric is rotated, polishing is effected by abrasion of the surface against the mesh as well as by mutual rubbing against each other as they roll inside the drum. Machine polishing: This method consists of an octagonal or hexagonal wooden drum mounted on a central axis and rotated by power. Colouring Boiled, dried and half polished turmeric fingers (half polished turmeric is more suitable since colour does not stick to the rhizomes that have been polished fully to smooth finish) are taken in bamboo basket and shaken with turmeric powder. For coating 100 kg of half polished turmeric 200 g of turmeric powder is required. When fingers are uniformly coated with turmeric powder, they are dried in the sun.
