There are temp probe offsets in the controller. Grab the manual or go online I can’t remember off the top of my headDoing a beef brisket flat today (if rain doesn't trip the GFCI breaker). First time I've ever "barbequed" beef. About 5.5 lbs @ 225 (independent thermometer indicates a 25 degree offset from internal probe) for 8 hours maybe? Plan to paper wrap.