Spiral Organic Soba Noodles are a thin, light brown coloured noodle made from buckwheat and wheat flour. Buckwheat is rich in protein and minerals. Buckwheat contains as much vitamin B1 as brown rice and nearly twice the levels of B1 found in wheat. Soba is the Japanese name for buckwheat, a small pyramid shaped seed. Because buckwheat is a hardy plant that flourishes in poor soil and cold climates, it is grown in many different areas of the world. Buckwheat was grown in Japan for the first time about 1,500 years ago. With the development of milling techniques it is now manufactured as a noodle.