Old fire soup means "old fire soup", also known as Canton soup, belongs to the Cantonese cuisine. It is a secret recipe for food supplementation and health preservation inherited by Guangfu people for thousands of years, and the Chinese old-flame soup is boiled slowly, with sufficient fire and long time, which is not only taking the effect of medicinal supplementation, but also taking the sweetness of the entrance.

There are many kinds of Guangfu old fire soup, which can be cooked with various kinds of soup ingredients and cooking methods to produce a variety of different flavors. Soup ingredients can be meat, eggs, seafood, vegetables, dried fruits, grains, medicinal herbs, etc.; the method of making soup can be a thousand different, simmering, rolling, boiling, braising, stewing, etc.; different soups due to different materials will have different flavors such as salty, sweet, sour, spicy, etc..