What does old fire soup mean

Old fire soup is a cooking method as well as a food product. Old fire soup is a traditional Chinese cooking method, but also a very popular food, this kind of soup because of the long cooking time, flavor and nutrition are very rich, loved by people. Old fire soup, also known as Guangfu soup, is a traditional dish in the Guangdong area, but also Guangfu people inherited thousands of years of dietary supplements and health recipes, slow cooking Chinese old fire soup, the fire is sufficient, long time, both to take the effect of medicinal supplements, but also to take the sweetness of the entrance.