The milling process
The flour milling process has evolved from wheat being ground between two large stone wheels (although this process does still occur in a few mills). In a roller mill the practice centres around separating the three components of a wheat seed – the white endosperm, the outer bran layers and the wheat germ. These are each made up of different materials and when separated and milled in isolation the miller can produce flours that are finer and therefore better suited for today’s uses. For more detailed information on wheat structure click here.
The video below shows the layout and vast range of milling machinery that it used in a modern flour mill to convert wheat into flour. The video is shown with the kind permission of Buhler who make the machinery (www.buhlergroup.com).