A professional who tends mixing machine to finish mixing of matchhead compound to produce mixture of specified viscosity. Respnsibilities include:

• Lifts kettles of compounds from cart onto mixer with hoist.
• Starts mixer and pours dye solution into compound.
• Sets thermostat or opens valve to admit steam into jacket around kettle to heat compound if specified, and verifies temperature with thermometer.
• Fills graduated dipper with compound and times flow of compound from dipper with stopwatch to test viscosity.
• Adds specified ingredient according to test results until viscosity is correct.