A professional who tends machine that grinds sweet potatoes into semifluid state to facilitate cooking process. Respnsibilities include:

• Starts machine and turns handwheel to admit water into discharge chute of conveyor and into machine to lubricate potatoes during grinding process.
• Starts conveyor that moves potatoes from hopper into chute feeding grinding machine.
• Observes level of semifluid potatoes fed into receptacle and stops grinding process when receptacle is full.
• Clears potato jam-ups on conveyor, using rod.