Generally, the water-retaining agent for chicken chops processing is mainly phosphorus-free water-retaining agent. The characteristics of phosphorus-free water-retaining agent can effectively open muscle fibers and have a distinct sense of meat. A good quality water-retaining agent can generally reach a yield of 55%, with moderate tenderness, no wood feeling and excellent taste. In the process of processing, technology is also particularly important, and the general ambient temperature is 0-6℃. Other relevant information will not be repeated one by one.