 The demand for these grits was so great, hand sifting them was inadequate, so Paur employed the services of a cabinet maker named Winter to build the first middlings purifier.Paur milled already-separated grits a second time, first making an "extract flour" locally known as "Auszug".Over the course of several decades, these high-milling techniques spread to Hungary, Saxony, and Bohemia, among other areas.