Coated eel is one of the seasonings in Japanese cuisine. It is mainly used with dishes such as sashimi. Its function is to bring out the delicious taste of fish, increase appetite, and make the fish more tender. Painted eel is usually made from ingredients such as eel, sake, sugar and soy sauce. In Japan, one can find painted eels in many restaurants and supermarkets. At the same time, coated eel is also widely used in sushi making as a seasoning that binds sushi rice and seafood or fish together, making the sushi more delicious.