They electronically candle their eggs and remove any with these defects. They still sell them as they are safe to eat, just theYou know, this brings up another question. If these meat/ blood spots are somewhat normal how do commercial producers not have this issue? I can't see them catching every egg with a spot and I've never encountered this with store bought eggs.
ick" factor. They probably sell them at reduced rate to pet food manufacturers or people like that. That Egg Quality Guide tells you how often they occur in commercial eggs.