A professional who tends banks of sifting and purifying machines that separate fine flour from coarse flour or middlings. Respnsibilities include:

• Opens spouts and adjusts feed slides to route flour to machines and to regulate flow across sifters without overloading.
• Feels sifted flour to detect uneven texture that indicates breaks in screens.
• Pulls screen frames from machine to locate and replace broken screens.
• Records weights of flour grades produced as indicated on automatic scales.
• May collect flour samples periodically for laboratory testing.
• May perform color tests of flour, comparing color of various batches to maintain quality of milled product.
• May be designated according to machine tended as Purifier.