A professional who tends equipment that extrudes and dries compressed yeast to make bakers' active dry yeast. Respnsibilities include:

• Dumps compressed yeast into hopper of extruding machine.
• Observes temperature indicator and moisture gauges on drier, and sets controls to maintain prescribed temperature and humidity in drier.
• Starts extruder that forms yeast into noodles and deposits them onto conveyor belt that carries yeast noodles through drier.
• Collects yeast samples from conveyor at specified locations in drier, submits samples to laboratory for analysis, and adjusts temperature and humidity of drier on basis of laboratory report.
• Connects mill to hopper outlet to grind dried yeast to specified fineness.
• Opens outlet of drier or mill hopper to fill containers.
• Weighs containers and records weight.
• Transfers containers to storage, using lift truck.