·         Washing; the yam tubers are washed properly in order to get rid of sand and other extraneous materials.

·         Peeling and slicing; the washed yam tubers are peeled and then sliced to desired thickness.

·         Parboiling; the sliced yam are then put into boiling water over a period of time depending on the thickness of the slices.

·         Drying; the parboiled yam slices are dried in a dryer at a specified drying temperature and time.

·         Milling; the dried yam slices are milled directly into flour of uniform particle size.

·         Packaging; the yam flour is the finally packaged in moisture proof nylon bags.