I worked in a local grocery meat department my first year after high school.
We sold it in the case. Only a few customers bought it. But I never seemed to go bad.
I never tried it myself. The idea of jellied meat does not appeal to me. (also known as head cheese)
But who am I to talk, I like Braunschweiger.
So, you know souse is the ears and snouts of hogs, right?