Principles of physical impact. According to the query of relevant public information, the marinating machine uses the principle of physical impact to marinate chicken legs. The meat pieces flip up and down in the drum. Some of the meat is brought to a high place by the baffle, and then falls freely, interacting with the meat pieces at the lower level. Impact, because the rotation is continuous, each piece of meat has the opportunity to turn over, rub and hit each other. In this way, the original stiff meat can be softened, the muscle tissue can be relaxed, and the pickling liquid can easily penetrate and spread. The color of the meat is even and it also plays a mixing role.