A professional who tends one or more cracking and fanning machines that shell and crack cocoa beans and separate shells from nibs (cracked beans) preparatory to further processing. Respnsibilities include:

• Starts machine rollers and blowers that shell and crack beans and starts conveyors that carry off shells and transfer nibs to treating drum.
• Turns handwheels to adjust roller pressure so that resultant nibs are of specified size.
• Moves handles to adjust air supply to blower to ensure thorough separation of shells from nibs.
• Observes thermometer and turns cold water valve to cool conveyor carrying beans from roaster to cracking fanning machine.
• May grind nibs to obtain liquid chocolate of specified consistency.