Because the chicken is hot, when the soup is boiled, the continuous high temperature will evaporate the water and make the water in the soup less; Second, after boiling, slow fire and low temperature can make nutrients penetrate into the soup, just like Guangdong old fire soup has been boiled for a long time.

Laohuo soup, also known as Guangfu soup, belongs to Cantonese cuisine. It is the secret recipe of food supplement and health preservation handed down by Guangfu people for thousands of years. Chinese old fire soup cooked by slow fire has enough calories and takes a long time. It not only takes the effect of medicine to make up, but also takes the sweetness in the mouth. Boiling for several hours is enough to adjust the balance of yin and yang in human body, and it is a medicated diet soup for nourishing the body.