Horseshoe should be sold in both vegetable markets and supermarkets. However, the harvest season of water chestnut is autumn, so you can buy fresh water chestnut in autumn. However, the current freezing technology is good, and farmers in some waters will freeze water chestnuts to extend the sales time. Therefore, it is recommended to look for it in big supermarkets and agricultural products markets.

And the water chestnut in the north is rare. It depends on your luck. I don't eat much in northern Renye Fang.

Some Chinese medicine shops may buy it dry.

Horseshoe powder will be sold in the supermarket.