My first two briskets both weighed about 10 pounds and on average took 19 1/2 hours to reach an internal temp of 191 with my 009 set at 230 degrees. I put a 12 pound brisket in yesterday at 6 PM and since it was bigger than my previous briskets, I figured this one would take 20 hours. Since I'm on vacation, I slept in and when I checked the smoker at 10 AM the internal temp of the brisket was 197! I opened the 009 up and tried the probe in several different spots and all confirmed temps above 195, so I pulled it out, wrapped it in foil and put it in a cooler until 12:30 PM. The brisket it great and extremely tender, I'm just surprised this larger brisket was done 3 to 4 hours earlier than my previous attempts. All three briskets were purchased from Walmart. I guess it's done when it's done!
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