I know this comes up alot here but I am puzzled about it. I usually end up with some dottle or unburnt tobacco about the size of the end of my thumb at the bottom of the bowl when I end my smoke. It gets wet or bitter. I have made it to the bottom of many bowls of Dunhill EMP without problems and last night my bowl of Old Gouwrie just kept going. I think I would have made it to the bottom but after 75 minutes I was ready to put it out. I smoke rather quickly I guess about 2 puffs every 10 seconds or so. My smoke is always cool and I rarley ever get bite. Is there any reason I might not be smoking to the bottom? I have been drying out about an ounce at a time for an hour or so then tinning it up and smoking it until it's gone.