When I pull out a vacumed bag of venison to thaw, I notice a large amount of blood has seeped out from the meat. As you all know you cannot vacume pack with liquid in bag. So, my thought is to remove more blood (for OP) he could seal it, freeze it, thaw it, remove more blood and eat it. Or..... seal, thaw, remove blood, reseal...... Just a thought. I wont do it. I love the bloody taste. But for him. it may help.