I think the meat from pig's hind legs is suitable for filling sausages, which is elastic and low in fat. Pork is not expensive, so sausage filling is very common. Different regions have different tastes and sausages have different tastes.

When filling sausages, the amount of salt should be moderate, too much will affect the taste. When filling sausages at home, we should pay attention to prevent flies from polluting pork.