Barley is a very important grain in the world today. It is very versatile in every way. It has been well adapted through its evolution. It has a very mysterious and much debated beginning. Now however, barely has become well known and so have its many uses. Barley, which is of the genus Hordeum, is a cereal that belongs to the grass family Poaceae. Barley has many different varieties. The most common is Hordeum vulgare, which is a six-rowed type of barley that has a spike notched on opposite sides with three spikelets on each notch. At each notch there is a flower or floret that later develops into a kernel. Hordeum distichum is a two-rowed type of barley that has central florets producing kernels and it has lateral florets that are sterile. Lastly there is Hordeum irregulare which has fertile central florets and different arrangements of sterile and fertile lateral florets. Hulling is the process of removing the hulls (or chaff) from beans and other seeds. To prepare the seeds to have oils extracted from them, they are cleaned to remove any foreign objects. Next, the seeds have their hulls, or outer coverings, or husk, removed. There are three different types of dehulling systems that can be used to process soybeans: Hot Dehulling, Warm Dehulling and Cold Dehulling. Hot Dehulling is the ultimate system offered in areas where beans are processed directly from the field. Warm Dehulling is preferred by processors who import their soybeans. Cold Dehulling is offered to plants that have existing drying and conditioning equipment, but need to add dehulling equipment to produce high protein meal. The different dehulling temperature options are for different types of production, beans and preparation equipment.