A professional who tends machine that mixes and blends food ingredients to produce such products as mayonnaise, mustard and salad dressing, and spices, according to formula. Respnsibilities include:

• Weighs such ingredients as eggs, salt, spices, and sugar, using scale or weighing hopper.
• Dumps ingredients into mixing machine.
• Turns valves to permit measured amounts of such liquids as oil, water, or vinegar to flow from tanks into mixing machine.
• Starts machine and observes mixing to ensure thorough blending.
• Starts pumps to transfer contents of mixer to containers, filling machines, or storage tanks.
• May grind dry ingredients, using grinding machine.
• May be designated according to product mixed as Egg-And-Spice Mixer; Mayonnaise Mixer; Mustard Mixer.