Because protein will turn white when heated. The key to boiling white soup is to break the bones and let the bone marrow flow out. In fact, the bone marrow is protein, and another key is to burn it fiercely with fire, forcing protein out and turning the soup white.

Mutton soup is in Lingbao, western Henan. Almost everyone drinks mutton soup. Everyone has several stories about mutton soup. Mutton soup is not only a diet of Lingbao people, but also a culture and an inseparable feeling of Lingbao people.

According to legend, as early as the Spring and Autumn Period and the Warring States Period, Fan Li, the prime minister of the State of Yue, came to Yangzhuang Town, Zaozhuang City to live in seclusion. Seeing the fertile grass in yanggang, I raised sheep here to get rich and benefit the people.

Zaozhuang mutton soup is a famous flavor with a long history. It is famous for its thick soup, delicious taste, no fishy smell, fat but not greasy, and various patterns. The daily sales volume of mutton in Yangzhuang Town is above 1.5 thousand Jin. Tengzhou mutton soup has been fragrant in southern Shandong and northern Jiangsu, and its making method has been included in China menu.