It must be put. Ginger can remove the fishy smell, refresh, sterilize and enhance fragrance. Will not affect the soup. In addition, remember to use non-metallic containers such as sugar porcelain and ceramics for soup overnight. Because salty food stays overnight in metal containers, it will affect the quality of soup and produce chemical reactions, which are harmful to human body. It is suggested that monosodium glutamate should be put at last after boiling the soup, which is harmless to human body. In addition, it is suggested that the catering, hygiene, price and operation process are in line with public opinion, thus gaining the appreciation of consumers. It is very gratifying and happy! This is a sweet memory and experience of my contracted army canteen. -My humble opinion, please review!