A professional who operates machines and equipment to mix cornstarch blends. Respnsibilities include:

• Signals starch-treating assistant to admit starch suspension into mixing and storage tanks, and to dump measured amount of chemicals into mixing tanks to prepare chemical solutions.
• Reads meters and turns valves to admit chemical solutions into blending tank.
• Manipulates switches and turns valves to regulate heaters and agitators that mix solutions, and to pump starch mixtures into blending and filter tanks.
• Receives or draws samples of product and performs standard tests to ascertain if acidity, alkalinity, and viscosity conform to specifications, using hydrometer and other test equipment.
• Records quantity and kind of chemicals used.
• Inspects equipment and observes gauges, thermometers, and meters to maintain efficient production.
• May direct workers engaged in regulating filters, shakers, centrifugal driers, and related equipment to produce dry starch products.