A professional who tends vats and filter presses to bleach wax used in candlemaking. Respnsibilities include:

• Measures and dumps specified chemicals and wax into vats and turns thermostat knob to prescribed temperature to liquefy wax.
• Packs granulated charcoal on sides of filter press and starts pump to circulate molten wax through press.
• Stops pump after specified time and drains sample for laboratory analysis.
• Turns valves or starts pumps to transfer wax from press to tanks.
• Records types and quantities of wax used.