After reading another thread mentioning Jehovah's Witnesses I became interested in their beliefs about blood. They reject blood transfusions and don't eat meat with more than a trace of blood in it. Searching around a bit I came across the following from a pro-JW web site.
Though Christians are to abstain from blood (Acts 15:29), the Bible shows that the eating of flesh by Christians is proper, for God Himself told us that we could eat meat from "every animal". "Every moving animal that is alive may serve as food for YOU." (Gen. 9:3)
But God commanded that before eating the flesh of an animal, his people were to pour out its blood on the ground and cover it with dust, being careful not to eat the blood, on pain of death. (Deut. 12:23-25; Lev. 7:27) This is our way for us to show respect for God's view of life.
So when someone carefully takes the strict precautions that God outlined by making sure that an animal is properly bled before consumption, they wouldn't be breaking God's command of eating blood. Since God Himself has issued these directions, obviously, if properly done, God does not have a problem with eating the meat from "every animal".
People can rest assured that nearly all blood is removed from meat during slaughter, which is why you don’t see blood in raw “white meat”; only an extremely small amount of blood remains within the muscle tissue when you get it from the store. (Also see: The Red Juice in Raw Meat is Not Blood (todayifoundit.com)"
However, from a comprehensive explanation of the slaughtering of animals: (I urge anyone who's interested to access the link below)
So my question is, if the muscle (meat) can contain up to 10% of an animal's blood wouldn't this make it unacceptable to Jehovah's Witnesses?
*"Cattle and pigs are usually exsanguinated [drained of blood] by a puncture wound which opens the major blood vessels at the base of the neck, not far from the heart. The trade name for this process is sticking"