Dried sweet potatoes are coarse grains. Through the query China Food Network shows that most of the nest nest is coarse grain nest, and sweet potato belongs to coarse grain, sweet potato made of dried nest nest is naturally coarse grain, in the north of China is more common pasta. Because it is generally used in the production of green grains and cereals as the main raw materials, and high fiber content, with the role of stimulating gastrointestinal peristalsis, not only has the role of prevention and treatment of constipation, intestinal inflammation, intestinal cancer, and which contains corn oil, can lower serum cholesterol, to prevent the occurrence of coronary heart disease. So dried sweet potato nest is coarse food.