There is no mutton in mutton soup. In fact, it's not just mutton soup. Many of these soups have no raw meat. Mutton soup generally contains sheep offal, which is generally sheep viscera or sheep intestines. The only thing that doesn't exist is that there is no mutton in the mutton soup, and there is basically no mutton in the mutton soup anywhere. Why not put sheep meat may be for cost reasons, because the price of mutton is too expensive. If you put mutton in mutton soup, it's all right, but it will lead to their high content, and then the number of people who drink it may drop. Therefore, in order to ensure the delicious mutton soup and the reasonable original price, merchants can only choose some haggis to cook soup. In fact, it is completely possible to put sheep meat in mutton soup, and there is no problem at all, but the traditional practice of chicken is not to put sheep meat, which is basically due to cost considerations.