To answer Cal's questions, Yes it is CS Wood. I buy it in I thing 5 pound boxes. I can't be sure how dry it is but I would guess the moisture content is low. The sizes are what CS sends and I had three chunks in the smoker box. As far as I know, there has not been any damage done with the exception of dirty underware when it happens (these are not just puffs but rather loud explosions which blows a great deal of smoke into the air.