Tend equipment that cook animal fat, and filter and bleach oil.
What does a Lard Refiner do?
Tends equipment that cooks animal fat, and filters and bleaches oil: Cooks fat in steam-jacketed kettle. Turns valve to admit rendered oil to agitator tank. Starts agitator, and turns valve to heat tank. Dumps specified amount of fuller’s earth into tank. Turns valves to transfer oil through filter drums into storage tank. May add preservative solution to lard in mixing tank and press button to blend ingredients. May be designated according to material handled as Oleo-Hasher-And-Renderer.