A professional who tends machine that removes from cocoa beans, such foreign materials as stones, string and dirt. Respnsibilities include:

• Selects bags of cocoa beans, according to instructions and transfers them to hopper of machine, using handtruck; or presses button to start conveyors that move beans from silo to hopper.
• Opens bags with knife and dumps beans into machine hopper.
• Positions conveyor spout to direct cleaned beans to specified silo for storage.
• Starts conveyors and machine that carry beans through air-cleaning system to remove foreign matter.
• Observes cleaning process to detect machine malfunction or material overflow.
• Removes and stacks sacks of dirt from discharge spout of air-cleaning system.
• Examines silo to verify conveyance of specified type of bean.