I sometimes find dark red spots on chicken wings. As well, I almost always find very dark (almost purple) veins in the wings. Are these a problem?
It is difficult to answer such a question without actually seeing the chicken; but in general, the dark red spots on the chicken wings are usually not an issue. This is because these things usually happen from the plucking machine, when the chicken was already dead, and therefore it would not render it a treifa. Regarding the dark veins that is also not an issue that the chicken may be a triefa.: