Brisket & roasts

Traeger Smoked Tri Tip Roast

How to smoke and reverse-sear a tri-tip roast on a Traeger, including timing, temperature, and the slicing step most people get wrong.

On this page
  1. Is Tri-Tip Good for Smoking?
  2. What You Need
  3. Step-by-Step: Traeger Smoked Tri-Tip
  4. Smoking Temperature: 225°F vs. 180°F
  5. How Long Does It Take?
  6. The Reverse Sear
  7. The Most Important Step: Slicing Against Two Grains
  8. FAQ

Is Tri-Tip Good for Smoking?

Yes — tri-tip is one of the most forgiving and reliable cuts to smoke. It’s a naturally tender cut from the bottom sirloin, so unlike brisket or chuck roast, it doesn’t need hours of low-and-slow cooking to break down connective tissue. It just needs to be brought up to temperature gently, then finished with a hard sear, which makes it a great option when you want real smoked flavor without committing an entire day. It’s also considerably cheaper than brisket — a whole tri-tip roast typically runs around $25, versus $50 or more for a comparable brisket.

What You Need

  • A 3–5 lb tri-tip roast
  • 2 tablespoons kosher salt
  • 2 tablespoons freshly ground black pepper (or a beef/BBQ rub of your choice)
  • A meat probe thermometer

Trim off any thick, hard fat or silver skin before seasoning. Apply the salt and pepper (or rub) evenly on all sides, and let the roast sit at room temperature for about 30 minutes while the grill heats up.

Step-by-Step: Traeger Smoked Tri-Tip

  1. Preheat the Traeger to 225°F with the lid closed for 15 minutes. Turn on Super Smoke if your model has it.
  2. Smoke the tri-tip directly on the grates, with a meat probe inserted into the thickest part, until the internal temperature reaches 130°F — this usually takes 60–90 minutes for a 3–5 lb roast.
  3. Remove the roast and tent it loosely in foil. Increase the Traeger temperature to 450°F–500°F and let it preheat for about 15 minutes.
  4. Sear directly on the hot grates, about 3–4 minutes per side, until a good crust forms and the internal temperature reaches roughly 135°F for medium-rare.
  5. Rest for 10–15 minutes before slicing.

Smoking Temperature: 225°F vs. 180°F

225°F is the standard and the better choice for most cooks. It’s hot enough to move the roast to temperature in a reasonable window (60–90 minutes) while still giving plenty of time to pick up smoke flavor before the reverse sear. Dropping to 180°F mainly extends the time spent in the smoker without a meaningful improvement in flavor or texture on a cut this size and this tender — tri-tip doesn’t have the connective tissue that would benefit from the extra low-and-slow time the way brisket or chuck roast does. Stick with 225°F unless you have a specific reason to go lower.

How Long Does It Take?

For a 3–5 lb tri-tip at 225°F, expect about 60–90 minutes to reach 130°F internal, plus roughly 15 minutes to reheat the grill for searing, and 6–8 minutes of actual sear time. All told, budget around 2 hours from start to rested, sliced tri-tip — a fraction of the time a chuck roast or brisket requires.

The Reverse Sear

The reverse sear is what gives Traeger tri-tip its steakhouse-style crust without overcooking the interior. Because the roast is already close to its target temperature going into the sear, you only need a few minutes of high heat per side to build color and texture, rather than the longer searing time a raw or cold roast would need. Watch the internal temperature closely during the sear — it climbs quickly at 450°F–500°F, and the goal is a final temperature around 135°F for medium-rare.

The Most Important Step: Slicing Against Two Grains

This is the detail that makes or breaks tri-tip, and it’s easy to miss if you’ve never worked with the cut before. Unlike most roasts, tri-tip’s muscle fibers run in two different directions that meet roughly in the middle of the roast.

  1. Look at the surface of the rested roast and find the point where the grain direction visibly changes.
  2. Cut the roast into two pieces along that line.
  3. Slice each piece thinly, against its own grain, angling your knife slightly on a bias for the most tender result.

Slicing the whole roast in one direction — the natural instinct if you don’t know to look for the grain change — will leave half the roast noticeably tougher and stringier than it should be, even though the cook itself was perfect.

FAQ

How to cook a tri-tip roast on a Traeger smoker? Smoke at 225°F to 130°F internal, then reverse-sear at 450°F–500°F for 3–4 minutes per side to a final internal temperature around 135°F, and rest before slicing.

How long does it take to smoke a tri-tip roast at 225? About 60–90 minutes to reach 130°F internal, for a typical 3–5 lb roast.

Is it better to smoke tri-tip at 180 or 225? 225°F is the better choice for most cooks — it’s efficient and still gives plenty of time for smoke flavor, without the extra hours that 180°F adds with little added benefit for this cut.

Is a tri-tip roast good for smoking? Yes. It’s tender, relatively quick-cooking, and more affordable than brisket, making it one of the most approachable cuts to smoke.

For a completely different style of roast — low-and-slow until it’s tender enough to shred — see our guide to smoking a roast on a Traeger, which covers the chuck roast method.

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