Originally Posted by
Thundarstick
Read up on myoglobin and you'll have a better understanding of why red meat is red. It isn't blood coming out of that burger or steak that's been frozen, or rare steak. Just because it's red, don't mean blood. You'll also understand why meat turns brown.
We have historically bleed animals because of religious practices. Some cultures eat and drink blood, but Christian and Jewish religions forbid it. There is even a push on for slaughter houses to start using CO2 chambers to more humanly kill the animals. The heart would be stopped before the first cut was ever made.