Seives And Purifiers

The "Purifier" is a sloping table which separates out the broken parts of the wheat according to size and weight using currents of air.

The Bran skins are lighter than the floury parts and float to the top. This means the heavier white flour parts stay to be separated by the sieving motion of the table.

The inner floury part - the Semolina - is then sent to the next stage of the milling process the - "Smooth Reduction Rolls" - and the rest of it is sent back to the ground flour to go through another set of Break Rolls.