All the years that I was in, we used to say that provided the meat had come from a commercial abattoir then it would have been bled , thus complying with God’s law .It is the venous blood that matters not the residue in the fibres of the meat.
Food is not usually a problem, it is the application of that rule to medical transfusion of blood that causes an issue. I would recommend the website ajwrb.com
if you read there you will know more about the issue than most Witnesses.