Water chestnut (English name: water chestnut, scientific name: Eleocharis dulcis), also known as water chestnut, water chestnut, peony, water chestnut, black taro, water chestnut and pear, belongs to the monocotyledonous Cyperaceae. Because it is shaped like a horseshoe, people also call it a horseshoe. It looks like chestnut, not only in shape, but also in taste, composition and function. Because it is produced in mud, it is also called "chestnut".
Water chestnut skin is purple and black, meat is white, sweet and juicy, crisp and delicious. Since ancient times, it has been called "underground Sydney", and northerners regard it as "Jiangnan Ginseng".
Water chestnut can be regarded as fruits and vegetables, and it is a popular seasonal product.
Quality requirements of water chestnut: large, clean, fresh, thin skin, fine meat, sweet, crisp and slag-free is the best.