re: how long to smoke a pork shoulder

quote:

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He called me a dick because I suggested he use a probe thermometer and not guess

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Well it was a dick response. He's looking for an estimate of how long to expect to keep it on. Does it take 4 hours to bring to temp? 8 hours? If you've never done one it's a legitimate question so you're not out there letting all the heat/smoke out every 20-30 minutes.