A professional who tends hydrating and drying equipment to make instant dairy products, using either of following methods. Respnsibilities include:

• (1) Turns valves, starts fans, and observes thermometers and gauges to heat drying chamber to specified temperature and supply steam to hydrating jets.
• Starts conveyors and shaker screen.
• Turns dial to transfer powder from feeder hopper through steam spray, drying chamber, and vibrating screen into storage hopper.
• Turns steam valves and feeder dial to adjust temperature or powder flow to maintain specified moisture content.
• (2) Starts pumps, turns valves, and observes meter to spray water into hydrator at specified rate.
• Starts blower to push powder from storage hopper, through water spray, and onto conveyor leading to dryer and sizing rolls.
• Turns valve and observes thermometer to maintain specified temperature in dryer.
• Positions sizing rolls on conveyor, using wrench, to crumble dried powder to specified size.
• Examines and feels powder for moisture and charring.