A professional who tends automatic glass forming machines, used to form bottles, containers, and other glassware from molten glass. Respnsibilities include:

• Turns valves to regulate temperatures of molten glass in forehearth, flow of glass to forming machine, and coolant to solidify glass shape.
• Lubricates molds with graphite solution to prevent glass sticking to molds, using swab or spray gun.
• Inspects glassware to ascertain conformance with specifications, using fixed gauges and scales.
• May correct timing sequence by adjusting timer drum. May tend annealing lehr used to control cooling of formed product.