Originally Posted by kramus

Mechanical rendering means that automatic equipment strips things such as the nervous tissue from the animals spinal cord to get every bit of juicy goodness from the cow. This material is used in processed meats and meat byproducts that are universally marketed throughout North America. Read the can on cheap stews etc where you can get chunks of "formed beef". Try to read the exact cut of beef that goes into some of those beef sausages and sliced sandwich meat packages that look so clean and safe in your grocery store.