A professional who tends equipment that controls temperature and humidity in rotating drums or compartments in which barley is germinated to produce malt. Respnsibilities include:

• Starts fans that force and circulate moist, heated air into drums or compartments.
• Moves damper counterweights or lowers handle to adjust and obtain specified temperature and humidity.
• Adds water to drum, using metered hose, or starts screw-type mixing machine equipped with water sprayer to ensure uniformity of germination.
• Removes sample of germinated barley from drum or compartment for laboratory analysis.
• Records such data concerned with malting cycle as air and water temperature and humidity content.