A professional who controls operation of steam-jacketed cooker that heats mixture of starch and acid to make dextrine paste. Respnsibilities include:

• Opens gate on overhead chute or shovels starch into cooker.
• Adds specified amount of acid to start starch conversion process.
• Turns valves to admit steam into jacket of cooker.
• Starts agitator to stir cooking starch.
• Observes process to determine when conversion to dextrine is made and turns valve to transfer dextrine to storage tanks or drums.