Okay guys so I have 2 briar pipes. THe rest are cobs or MM hardwoods (because of cost). So I was wandering, why do I get a nasty brownish liquid coming through the step every time I smoke a briar pipe? It only happens with briar, not cobs or hardwoods. It's like spit, but it isnt, I made completely sure not to let any get down the stem when I smoke. It's brown, tastes disgustingly bitter and sour, and ruins my relaxation time with my pipe. Why does this happen? I smoke 1Q, captain black, frog morton (worst culprit for this) and squadron leader.