Which is better, iron bar hairy yam or yellow yam?

Hairy yam is rough in texture, easy to break and crisp in taste, while Huangshan medicine is fine in texture, not easy to break, dry and sweet in taste, suitable for cooking and making cakes, and has high medicinal value. Huangshan medicine tastes better.

This product is the dried rhizome of Dioscorea zingiberensis. Excavate from 1 1 to 65438+February, cut off the roots, wash the soil, peel off the skin with a bamboo knife, and dry in the sun or dry in the sun, which is the hairy yam. Choose coarse yam, soak it in clear water, add a little heat, cover it with a quilt, keep it moist and not stuffy, then put it on a board and knead it into a tube, cut both ends together, dry and polish it, and it is yam.