The Water Wheel and Mill
War Eagle Mill’s 18-foot undershot water wheel rotates when water strikes the paddles or blades at the bottom of the wheel. The force of the water’s movement drives the blades of the wheel, which rotates a turbine that drives the mill’s machinery. This, in turn, allows the millstone to grind grain into flour.
Our millstones work in pairs and are set vertically, one on in front of the other. The front stone, called the runner stone, turns as the other stone, called the bed stone, remains stationary. As the runner stone turns, the miller feeds grain into the eye of the hole in the center of the stone. Grain moves between the grinding surfaces, is ground and exits the outside as flour.
The grinding surfaces on the War Eagle Mill millstones are sharpened, or dressed, using the quarter dress pattern. Dressing involves cutting the pattern or the grooves into the grinding faces of the millstones. This eases the movement of the grain from the eye section to the outside of the stones. It also provides ventilation to help keep the temperature of the grinding process at an ideal level. Each millstone has an identical dress pattern. When the runner stone moves in front of the bed stone, the patterns oppose each other. This prevents the stones from making contact. Depending on the grain being ground, the distance between the stones can be as close as tissue paper distance apart.
To keep the stones in good order and quality of flour high, the stones are dressed regularly. A pair of millstones may take up to 20 hours to dress completely. War Eagle Mill’s quality, well-executed millstones produce nutritious organic and Non-GMO flour every day.