McDonald's in the face of dipping sales has allowed filming in one of it's US processing factories to dispel myths about the food including pink slime which they did admit to using for 7 years!
http://www.dailymail.co.uk/news/art...-burgers-not-rot-deny-makes-frankenfoods.html
The meat still looks pretty grey to me... and they use the cheapest bits like skin, fat etc...
They quit using pink slime after the complaints. If you watch the video you can see that it is the cheaper, fattier cuts of meat used to make plain 80/20 ground beef available anywhere.
And OH GOD NO!!!!!! They use skin in their chicken nuggets!!!!!!!!!!!!!!!!! Why on Earth would anyone eat chicken skin or include it in any recipes? It is just to be used for fried chicken, broth, wings, and various other forms of cooking in order to add some unhealthy flavor. Never nuggets though!
It is so odd to have worked in a food job and now do a lot of cooking myself to see people get worked up about this stuff. It's like watching people freak out when they realize that fish pee and poop in the water of a river they go kayaking in. I buy as large of a chunk of beef as possible and make my own cuts. When I buy chicken the only thing not attached are feathers, head and claws. I quarter it up, freeze the individual pieces (with skin on), and then put all the scraps (including, spine neck and organs) in the freezer for broth. And when I make broth the marrow of the bones is so drained that the bones just crumble apart in my hands as I pull the excess meat trimmings off. Since I can't store a full side of beef I just get the beef trimmings and bones off the butcher. I might pay $1 a pound, if not free to take the scraps off his hands. If I want to make sausage I can ask them for chunks of fat to grind with my venison.
Take an animal all the way from birth to the dinner plate and none of this will phase you. We attack McDonald's because...corporate prejudice and bigotry? The fact is, we have become lazy and complacent and no longer know where our food comes from. When we catch a glimpse we react like scared villagers seeing Frankenstein's monster.
EDIT: And BTW, beef is red due to oxygen coming into contact with myoglobin. It has nothing to do with blood. When freshly ground, the interior of beef may be grey due to oxygen not reaching the myoglobin. Also, over time the myoglobin changes states, causing it to lose its red color. Some meat processers will use carbon monoxide to maintain a healthy pink color beyond freshness.