A grain mill is a device used to grind grains into flour or meal. It can be powered by hand, electricity, or water, and comes in various designs, including traditional stone mills and modern steel roller mills. Grain mills are essential in the production of various food products, such as bread and pasta, by transforming whole grains like wheat, corn, and rye into usable forms. These mills can vary in size from small home units to large industrial machines. The grinding process can affect the texture and nutritional content of the flour, making it important for bakers and chefs to choose the right type of mill for their needs. Many people prefer using a grain mill to ensure freshness and control over the milling process.