Barley flour is a flour prepared from dried and ground barley. Barley flour is used to prepare barley bread and other breads, such as flat bread and yeast breads. There are two general types of barley flour: coarse and fine. Barley groats are milled to make coarse barley flour, and pearl barley is milled to make fine barley flour. Additionally, patent barley flour is a finer barley flour that is ground to a greater degree compared to fine barley flour.