How does the flour and meal get downstairs?
The angle of the furrows in the millstones and centrifugal force created by the turning of the runner stone move the flour out of the millstones. As the grain moves between the millstone, air is also moving to keep the millstones cool. There is a down draft created from the millstone eye through the millstones down the basement chute, which carries the flour down to the sifter.
