A miller is a person who operates a mill, a facility that grinds grain into flour or meal. This occupation has existed for centuries and is essential in the food production process. Millers typically work with various grains, including wheat, corn, and rye, using machinery to convert these raw materials into usable products. In addition to grinding grain, millers may also be involved in quality control, ensuring that the flour meets specific standards for texture and nutritional content. The role of a miller is crucial in the supply chain, as their work directly impacts the quality of baked goods and other food items made from flour, such as bread and pastries.