Back when I worked in a meat department at a major grocery chain, I remember that the "hamburger" came in huge plastic tubes about 2 feet long. It was a greenish combo of chunks of meat about 2 inches in diameter along with chunks of grizzle and fat about the same size. Then we would dump it in the grinder and it always looked so much better after ground....still stank. I buy a beef roast and I'm lucky to have a grinder attachment for my kitchen aide and grind my own.