1、 Difference in shape

The difference between the two is quite obvious. Mao yam is relatively thick, about 4-5cm thick, and the shape is irregular, some are thin and straight, and some are curved. The iron stick yam is relatively thin, usually only 1-1.5cm thick, with variable length, round head and sharp tail

2、 Epidermal difference

There are also obvious differences between the two on the epidermis. Chinese yam is relatively smooth, and the pores, pimples and hair whiskers of the epidermis are very sparse and distributed sporadically. The epidermis of tiebang yam has obvious pores and pimples, the hair whiskers are also densely distributed, and there are purple spots on the surface

3、 Difference in texture

Maoshan potion is divided into many parts and is relatively Shuiling. You can squeeze out water by hand, and it is easy to break. The texture fiber is relatively rough. The iron stick yam has fine texture, compact and fine fiber. It is stronger than the former and is not easy to break

4、 Difference in taste

In addition to the obvious differences in appearance, they are also very different in taste. Mao yam is crisp in taste no matter how long it is boiled. It is often made into refreshing dishes. When the iron stick yam is boiled in the pot for 10 minutes, the taste will become sweet and dry, and it will not disperse for a long time