According to AJWRB.com,
even a thorough bleeding of a slaughtered animal leaves as much as 50% of its blood in the flesh...
Since JWs are so emphatic about not "taking in blood" when it comes to blood transfusions, what is their reasoning for not observing Kosher laws, at least with regard to the draining of the blood? Do most JWs feel conflicted over eating a juicy and bloody rare steak? Is there any official prohibition against this? Do they realize that cooking it well-done doesn't remove any blood, but only changes its color?