yakdung
is Blowin Smoke!
I found this article and thought it may be of interest.
http://www.texasmonthly.com/food/the-importance-of-wrapping-brisket/
http://www.texasmonthly.com/food/the-importance-of-wrapping-brisket/
Very good read, glad i don't have to do 20 packers a day,