OG Chem, or “Chem OG,” is a sativa dominant hybrid strain created through a powerful cross of the classic infamous Chemdawg X OG Kush strains. With celebrity parents like this, OG Chem has a lot to live up to – and it does not disappoint at all. This strain has a super strong chemical diesel stench that will definitely make some users gag. The flavor isn't quite as intense, although it does have a powerful ammonia overtone that's grounded by a taste of fresh earth.