How to Smoke a Brisket by Time and Temperature
Brisket cook times are only ever estimates, the same 12-pound packer can take 12 hours or 18 depending on smoker temperature, wind, how often the lid opens, and how long it stalls in the 150-170°F range. Internal temperature, not the clock, is what actually determines when a brisket is done.
Steps
- 1Trim the brisket to an even quarter-inch fat cap and remove any hard, unrenderable fat around the point.
- 2Season with a simple salt and coarse black pepper rub and let it sit uncovered in the fridge for at least 1 hour, or overnight for better bark.
- 3Set the smoker to 225°F for a longer, more forgiving cook, or 250°F to shave a few hours off the total time.
- 4Plan on roughly 1.5-2 hours per pound at 225°F, or 1-1.5 hours per pound at 250°F, as a starting estimate for a 12-14 pound packer.
- 5Place the brisket fat-side up (or down, depending on the smoker's heat source) and insert a leave-in probe thermometer into the thickest part of the flat.
- 6Expect the internal temperature to stall between 150°F and 170°F for 1-4 hours as surface moisture evaporates and cools the meat.
- 7Wrap the brisket in butcher paper or foil once it hits the stall and the bark has set, this pushes through the stall faster without softening the crust too much.
- 8Keep smoking until the internal temperature reads 203-205°F and a probe slides into the thickest part of the flat with almost no resistance.
- 9Rest the wrapped brisket for at least 1 hour, and up to 4 hours, in a dry cooler packed with towels before slicing.
Common mistakes
- Planning around a fixed cook time instead of internal temperature: the stall alone can add 2-4 unplanned hours.
- Pulling the brisket at 203°F on the thermometer without probe-testing for tenderness: temperature alone doesn't guarantee the collagen has broken down.
- Slicing immediately off the smoker: skipping the rest lets all the juice run out onto the cutting board instead of back into the meat.
- Opening the lid repeatedly to check progress: every open lets heat escape and can add 15-30 minutes to the total cook.
Equipment
- Offset smoker, pellet grill, or kettle grill set up for indirect heat
- Leave-in digital probe thermometer
- Instant-read thermometer for spot-checking multiple spots
- Butcher paper or heavy-duty foil
- Insulated cooler and towels for resting
FAQ
How long does it take to smoke a 12-pound brisket?
At 225°F, expect roughly 15-20 hours including the stall and rest. At 250°F, plan on 12-16 hours for the same size brisket.
Is it better to smoke brisket at 225°F or 250°F?
225°F gives more margin for error and slightly more smoke penetration, while 250°F finishes 2-4 hours faster with a similar final result once rested properly.
Why did my brisket stall for hours and not move in temperature?
Evaporative cooling from the surface counteracts the smoker's heat between 150°F and 170°F. Wrapping in butcher paper or foil once bark is set is the standard fix.
Can I speed up a brisket that's behind schedule?
Wrapping tightly in foil and bumping the smoker temperature to 275-300°F can push it through the stall faster, though the bark will soften slightly.
Should I go by temperature or by feel when brisket is done?
Use 203°F as a starting point, then confirm with a probe: it should slide into the flat like it's going into softened butter, with no resistance.
Need exact temperatures or timing? Check our Time & Temperature Guide →