What McDonald's Beef Is Really Made Of: McDonald's doesn't exactly have the best reputation for beef quality but if you were expecting to find ammonia-drenched, gut particle-filled pink slime sludge goop de loop, well, you're going to be disappointed. It's all beef. You can see how they make it above.
This burger marks the fifth anniversary of BK's return to Japan and the concept behind the hamburger is "irrationality"—because hamburgers with black buns ARE CRAZY.
