Smoked Brisket
cooking times
The answer
12 hr – 15 hrat 250°F
At the most common temperature, 250°F, a whole packer brisket runs about 12 hr – 15 hr at 12 lb. Pick your temperature below for the full chart. Done is always 145°F internal.
SOURCE·USDA FSIS safe minimum internal temperatures·smoked brisket row of the FSIS chart·REVIEWED JUL 2026
USDA safe zone — 145°F and above
Done is a temperature, not a time. Every figure on this page is a planning range; the green band is the only part that decides. For a whole packer brisket it opens at 145°F and a 60-minute rest.
Source—USDA Food Safety & Inspection Service safe minimum internal temperatures—retrieved 2026-07
How this is worked out
- Anchor. Start from what USDA FSIS publishes for a whole packer brisket — its safe minimum internal temperature of 145°F, and the FSIS roasting timetable where one exists for this cut.
- Rate. Convert the anchor into a planning rate at 250°F: 60–75 min/lb, cross-checked against at least three independently published sources.
- Scale. Multiply that rate by your weight. A 12 lb piece lands at 12 hr – 15 hr; the range is widened to cover source disagreement rather than averaged into false precision.
- First check. The first thermometer reading is set at 85% of the low end of the range — early enough that an under-reading costs nothing and a late one cannot cost the meal.
- Gate. The time is only a plan. It is not done until a food thermometer reads 145°F in the thickest part, then rests about 60 minutes. Time never overrides temperature on this site.
- Round. Every printed figure is rounded to the nearest 5 minutes; precision beyond that would be invented.
plan_low = weight_lb × 60 min/lb
plan_high = weight_lb × 75 min/lb
first_check = plan_low × 0.85
DONE ⟺ internal_temp ≥ 145°F AND rest ≥ 60 min
(USDA FSIS — the gate, not the clock)
SOURCE·USDA FSIS safe minimum internal temperatures·safe minimum for this cut·REVIEWED JUL 2026
Pick your temperature
Every temperature this chart room holds for a whole packer brisket, each with its own worked ledger.
The whole cut, temperature by temperature
| Oven temp | Time for a 12 lb smoked brisket | Per pound |
|---|---|---|
| 225°F | 15 hr – 18 hr | 75–90 min/lb |
| 250°F | 12 hr – 15 hr | 60–75 min/lb |
| 275°F | 9 hr – 12 hr | 45–60 min/lb |
SOURCE·USDA safe-temperature guidance·timing ranges derived, see method·REVIEWED JUL 2026
When it is actually done
145°F internal
The USDA FSIS safe minimum internal temperature for this cut is 145°F, followed by a rest of about 60 minutes. The clock estimates; the thermometer decides. Every time on this page is a planning range, not a doneness test.
Pull temperature vs safe temperature: Brisket is safe at 145°F and inedible at 145°F. It is pulled at 195–203°F — most pitmasters probe for 'butter-soft' around 203°F in the flat — because only there has the collagen fully rendered.
SOURCE·USDA FSIS safe minimum internal temperatures·smoked brisket row of the FSIS chart·REVIEWED JUL 2026
What the ledger does not tell you
- Plan for the long end of the range plus an hour of buffer. A brisket that finishes early holds happily for hours wrapped in a cooler; a late one ruins dinner.
- The stall (150–170°F, sometimes 2–4 hours of no progress) is evaporative cooling. Wrapping in butcher paper or foil pushes through it faster at some cost to bark.
- Thickness beats weight: a thick 10-pounder can outlast a thin 14-pounder. That is why every serious time estimate is a range.
- Rest a minimum of one hour, wrapped. Many BBQ joints hold brisket 4+ hours — the rest is part of the cook, not an afterthought.
The clock tells you when to start looking. The thermometer tells you when to stop.
