The following steps provide quality control and quality assurance at the flour mill. • Store premix in a dry, secure location and away from direct light to prevent degradation of the vitamins. • Calibrate the feeder on a regular basis and whenever the premix composition is changed or the supplier is changed. • Calculate the feed rate for the feeder to establish an acceptable dosage target addition rate for premix. • Conduct the check weighing process of the feeder regularly. • Perform the iron spot test at least three times per eight-hour shift. • Send monthly samples for full analytical testing of all the nutrients added to flour. • Use of an inventory control system to verify that the amount of premix being used is close to the specified or target rate.
