Water chestnut is also called horseshoe, ground chestnut. Because of its white flesh, clean and fresh, and rich in various nutrients, it is loved by people. With water chestnut cooking, or made into a variety of dishes, meat and vegetarian, are delicious and refreshing, but should not be eaten raw. Because water chestnut is born in the paddy fields and ponds and marshes, it is contaminated by many kinds of harmful and poisonous organisms or chemicals, and it is easy to be infected with gingerbread disease if you eat water chestnut raw. If you must eat the tender flavor, should be peeled, boiled in boiling water for a few moments, add some sugar and then eat.