Is there a difference between Xing Laosan and Xing Laosi hot soup?

There is no difference. Just two names of the same food, Xing Laosan and Xing Laosi are brothers. Their hot soup is one of the earliest stalls selling hot soup in Zhengzhou. After many improvements, it successfully carried forward this humble traditional breakfast in Henan, and even boarded the CCTV stage. Because of their great fame, the two brothers operate "Big Brother Xing Laosan" and "Second Brother Xing Laosi" respectively, but no matter which one, the taste is the same and the formula is the same.