1, duck meat is cheap, according to the market price, mutton is per catty 18 yuan, but a string of Mongolian kebabs basically needs one or two meats, and the cost is two yuan. If the vendors still sell for two yuan a string, they will not make money at all. A catty of duck is about 4 yuan, but it can be made into 10 string, which will greatly reduce the cost.

There is a big difference between duck meat and mutton. Duck meat is yellow and mutton is white. In addition, mutton meat is delicate, while duck meat is rough. People can distinguish raw meat by observing it. But some duck meat is preserved, which is not easy to distinguish. Roasted duck with skin is thicker than mutton oil. If the public wants to distinguish mutton from duck by fishy smell, it is unrealistic. Because the roasted Mongolian kebabs are all seasoned with cumin and pepper, the fishy smell is covered up.