Brisket Smoking Timer

Common uses for a brisket smoking timer

Whole packer brisket on a smoker
Planning an overnight cook
Timing the wrap
Holding a brisket before serving

Brisket is mostly connective tissue, and smoking it is a long, slow conversion of that collagen into gelatin. That conversion is what turns a tough cut tender, and it happens over hours at temperatures well above the point at which the meat is merely cooked. This is why brisket cannot be rushed and why a thermometer alone will not tell you when it is ready.

Rules of thumb give roughly one to one and a half hours per pound at 110 °C, less at 120 °C — but they are unreliable, because the stall makes the timeline erratic. Plan generously, start early, and treat a finished-too-soon brisket as a solved problem: it holds for hours wrapped and insulated, while one that is not ready when guests arrive cannot be hurried.

The stall, and what it actually is

Somewhere around 65–75 °C internal, brisket stops climbing and can sit at the same temperature for hours. This is evaporative cooling: moisture leaving the surface takes heat with it at almost exactly the rate the smoker delivers it, so the meat holds an equilibrium^[1]. It is not a fault, and turning up the heat mostly just dries the surface faster.

The stall is why the hours-per-pound rules are so unreliable. Two briskets of identical weight can differ by hours depending on humidity, airflow and how much surface fat is exposed.

Wrapping, and what it costs

Wrapping in foil or butcher paper stops evaporation and pushes the brisket through the stall much faster. Foil is the more effective and also the most damaging to bark, since it traps steam against the crust; butcher paper breathes a little and preserves more texture.

Not wrapping at all gives the best bark and the longest cook. There is no correct answer — it is a trade between bark and time, and it is worth deciding before you start rather than at hour eight.

Done is a feel, not a number

Most briskets finish somewhere between 93 and 96 °C internal, but the number is a guide. What you are actually looking for is a probe sliding into the thickest part with almost no resistance, like pushing into soft butter.

That is why two briskets can be done at different temperatures. Collagen conversion depends on time at temperature as much as final temperature, so a brisket that spent longer getting there finishes tender at a lower reading.

Rules of thumb only. The stall makes brisket timing genuinely unpredictable — plan generously and hold rather than rush.

Brisket planning times
Weight	At 110 °C (225 °F)	At 120 °C (250 °F)	Add for rest
3 kg (6–7 lb)	8–10 h	6–8 h	1 h+
4.5 kg (10 lb)	12–15 h	9–12 h	1 h+
5.5 kg (12 lb)	14–18 h	11–14 h	1–2 h
7 kg (15 lb)	16–20 h	13–16 h	2 h

Expect the stall around 65–75 °C internal; it can last several hours and is not a fault.
Finish is judged by probe feel, typically around 93–96 °C, not by the number alone.
A finished brisket holds for hours wrapped and insulated. Start early rather than cutting it fine.

Source: On Food and Cooking: The Science and Lore of the Kitchen — collagen, evaporative cooling and slow cooking (ISBN 978-0-684-80001-1)

Sources

On Food and Cooking: The Science and Lore of the Kitchen — collagen, evaporative cooling and slow cooking (ISBN 978-0-684-80001-1) , Harold McGee, Scribner (Revised edition, 2004) — accessed 2026-07-28

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❓ Frequently Asked Questions

How long does a brisket take?

Roughly one to one and a half hours per pound at 110 °C, less at 120 °C — but the rules of thumb are unreliable because the stall makes timing erratic. Plan generously and start early; a finished brisket holds for hours, an unfinished one cannot be hurried.

What is the stall?

A period around 65–75 °C internal where the temperature stops climbing, sometimes for hours. It is evaporative cooling — moisture leaving the surface takes heat away at roughly the rate the smoker supplies it. It is normal, and raising the heat mostly just dries the surface.

Should I wrap the brisket?

It is a trade. Wrapping stops evaporation and pushes through the stall much faster; foil is most effective and softens the bark most, butcher paper breathes and preserves more texture. Not wrapping gives the best bark and the longest cook.

What internal temperature is brisket done at?

Typically 93–96 °C, but the number is a guide rather than the test. What you want is a probe sliding into the thickest part with almost no resistance. Two briskets can be done at different temperatures, because collagen conversion depends on time at temperature too.

How long should brisket rest?

An hour at minimum, and two is better for a large one. Brisket holds heat remarkably well, so a long rest is not a risk — wrapped and insulated it will still be hot hours later, which is exactly what makes finishing early the safe plan.

Can I speed up a brisket by raising the temperature?

Somewhat, but not much during the stall, and at a cost. Higher heat dries the surface and gives less time for collagen to convert, so you can reach the target temperature with meat that is still tough. Wrapping is the more effective accelerator.