Gizmodo - A Tour of McDonald's Horrifying Mechanized Meat Factories - Mcdonald's meat factory
http://gizmodo.com/5238869/a-tour-of-mcdonalds-horrifying-mechanized-meat-factories
"a torrent of beef spews out of a giant mechanical meat-hole onto a speeding conveyor belt; tubs, pipes and boxes of various sizes and shapes carrying a roiling mass of beef slurry; countless, mysterious processing chambers, each of which does who knows what else to the patties"