Where is the authentic yam? how much is it?
Huai 'an in Huaiyin is Huai 'an in Huaiyin. Of course, the authentic Huaiyin in Jiangsu and Henan are also good, but it may be produced in Huaiqing, which is the so-called "yam". Dried products are available in pharmacies and supermarkets, and generally about one kilogram in 80 yuan. Of course, you can't buy authentic fresh yam in Beijing, let alone wild yam, and fresh yam (artificially cultivated) in the vegetable market can make do. Where can there be any truth these days?