Pork Butt (Boston Butt) Smoker Recipe in 5 Easy Stages

How Long to Smoke Pork Shoulder at 225°F? At 225°F (or 107°C) it will take somewhere between 10-12 hours to smoke for a 10 pound (4.5kg) cut of pork shoulder.  The most important consideration for smoking is not timing but temperature. The pork shoulder is done when the internal temperature reaches between 195-205°F or 91-96°C….