A professional who tends mixing machine, evaporating pans, grinding mills, and drying oven that process powdered ingredients into granulated effervescent salts for use in drug preparations. Respnsibilities include:

• Dumps prescribed quantity of citric acid crystals into mill and starts machine to grind crystals.
• Starts mixer and adds ground crystals and specified amount of powdered ingredients to blend for designated time.
• Sets thermostat to regulate temperature of steam-jacketed evaporator pans, and dumps mixture into pans to heat for specified period and remove moisture.
• Inserts screen in mill and dumps contents of evaporator pans into machine to granulate to uniform size.
• Scoops granules into trays.
• Places trays in drying oven for predetermined time.
• Dumps or scoops dried granules into hopper or chute for transfer to storage or packaging area.
• May screen granules to remove particles smaller than specified size, using sieve.