A professional who operates steam-heated drum drier in vacuum tank to dry liquid cereal mixture to specified consistency. Respnsibilities include:

• Adjusts temperature regulator of vacuum tank to specified setting.
• Starts vacuum pump and revolving drum in vacuum tank.
• Turns valve to raise level of liquid in pan beneath drum, causing thin film of liquid to dry as it contacts rotating drum.
• Turns valve and moves controls to regulate drum temperature and speed and level of liquid in pan to attain specified color and consistency of dried cereal.
• Installs scraping blade that peels dried cereal from drum into handtruck, using wrench.
• Opens vacuum chamber and removes loaded handtruck.
• Pushes truck onto scale, records weight, and trips lever to dump contents into hopper.