Most frozen pizza crusts aren't even squished flat, its a large continuous sheet of dough which gets circles stamped out of it: https://www.youtube.com/watch?v

Most frozen pizza crusts aren't even squished flat, its a large continuous sheet of dough which gets circles stamped out of it: https://www.youtube.com/watch?v=j1-2gdkOe3A https://www.youtube.com/watch?v=j1-2gdkOe3A The waste gets cycled back through.