What yam does blueberry yam use?

Blueberry yam generally uses iron bar yam. Iron stick yam is slender in shape and soft in taste, which is suitable for dessert of blueberry yam. In the production process, it is necessary to steam the yam and then eat it with blueberry sauce or other sweet sauce. Iron stick yam is a special variety of yam, mainly produced in Jiaozuo City, Henan Province, China. Iron stick yam is characterized by dense meat, fine fibers and red spots similar to rust on the epidermis. This kind of yam is named for its unique appearance and texture. Iron stick yam not only tastes good, but also has high nutritional value and medicinal value, which has been recorded in ancient medical literature. In addition, iron stick yam can be divided into sandy soil and loessial soil according to the type of soil cultivated. Among them, the iron stick yam planted deep in the soil is considered to be the best quality, because this soil and climate conditions provide an excellent environment for the growth of yam.