Europe is cheap. According to relevant data, the price of Japanese eel is the highest, followed by American eel and European eel. The oil of American eel is mainly concentrated in the liver. When eels are slaughtered, the liver will be removed and most of the oil will be removed. It tastes a bit like eating lean meat. The fat of European eel is distributed under the skin, with thick skin and chewy taste. Japanese eel oil is mainly distributed in meat, so it tastes best and is suitable for both fat and thin.