A professional who tends equipment that blends and melts materials, such as clay, flint, and lead oxides, to make glaze. Respnsibilities include:

• Weighs specified amounts of ingredients on scale according to batch card.
• Dumps weighed materials into mixing machine.
• Sets timing device on mixer for specified period and starts mixer.
• Observes mixture for conformance to coloring specifications.
• Empties batch from machine into bin and transports bin to frit furnace, using lift truck.
• Dumps materials into furnace and turns gas and air valves to heat furnace to specified temperature.
• Shuts off furnace and turns wheel to pour fused mass from furnace into water sump to undergo crystallization.
• Drains off water and shovels crystals (frit) into bin.
• Transports bin to storage area, using handtruck.