Tri-tip is the fastest real smoke you can pull off on a pellet grill — a 2-3 lb roast goes from raw to rested in under two hours, which makes it the cut to reach for when a full brisket cook isn’t realistic on a weeknight. It’s also unforgiving in a different way than brisket: there’s no long cook to mask a bad sear or an overshot pull temperature. Here’s the reverse-sear process that gets it right.
Quick Answer
To smoke a tri-tip on a pellet grill: smoke at 225°F until the internal temperature hits 110-115°F (roughly 60-90 minutes for a 2-3 lb roast, according to Traeger’s own tri-tip recipe), then crank the grill to 450-500°F and sear about 1-4 minutes per side until it reaches 130°F internal for medium-rare. Rest 10-15 minutes, tented in foil, before slicing. Unlike brisket, tri-tip has two different grain directions in one roast — find the seam where they meet, split the roast there, and slice each half against its own grain, or you’ll end up with tough bites no matter how well you cooked it.
Doneness by internal temperature
| Doneness | Pull temperature | Notes |
|---|---|---|
| Rare | 120-130°F | Very few pellet-grill cooks pull this early on a roast this size |
| Medium-rare | 130-135°F | The standard target for tri-tip; 130°F is the most commonly cited number |
| Medium | 135-145°F | Still juicy, but tri-tip dries out faster past this point than a fattier cut |
| Medium-well | 145-155°F | Noticeably firmer; not recommended for this cut |
| Well done | 155°F+ | Tri-tip has little marbling to fall back on — expect a dry result |
Table per ThermoWorks’ beef doneness guide. Because tri-tip carries so little fat compared to brisket or pork butt, the gap between “great” and “dry” is only about 10-15°F — hence the reverse sear, which lets you hit a precise number instead of guessing when a steady 225°F cook crosses it.
Step 1: Buy and trim the roast
A whole tri-tip runs 1.5 to 2.5 lb, a triangular roast cut from the bottom sirloin. Look for a fat cap on one side — trim it down to about 1/8 inch, thin enough to render during the short cook without blocking smoke. Unlike a brisket, there’s no long render time to break down a thick cap, so leaving it heavy just means unrendered fat on the plate.
Pat the roast dry and season at least 30-45 minutes ahead — coarse salt, pepper, garlic and onion powder is the traditional Santa Maria rub, though any beef rub works.
Gear for the trim and rub
- A 6-inch boning knife handles the fat cap without wasting meat.
- Apply the rub while the roast is still cold and slightly damp so it adheres.
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Step 2: Smoke at 225°F to 110-115°F
Preheat the grill to 225°F and let it settle for 10-15 minutes. Place the tri-tip fat-side up, insert a leave-in probe into the thickest part, and close the lid. If your grill has a super-smoke or low-smoke setting, this short cook is exactly when to use it — there’s less total time for smoke to penetrate than on an 8-hour brisket cook, so early, heavy smoke matters more here.
Expect 60-90 minutes for a 2-3 lb roast to reach 110-115°F internal, per Traeger’s published tri-tip recipe and corroborated by multiple pellet-grill recipe sites. Pull it at that number, not at 130°F directly — the sear that follows adds real heat fast.
Leave-in probe thermometer
- Set an alarm for 110°F so you're not checking constantly on a cook this short.
- A second instant-read probe confirms the final 130°F during the sear, when things move fast.
Step 3: Reverse sear to 130°F
Pull the roast and tent it loosely while the grill ramps up to 450-500°F — most pellet grills need 10-15 minutes to climb that far, which also gives the meat a short rest before the sear. Some cooks move to a cast-iron pan or a side searing burner instead, since a pellet grill’s open flame at max temp isn’t always as hot as a dedicated sear station.
Sear 1-4 minutes per side, checking with an instant-read probe, until the internal temperature reaches 130°F for medium-rare. This is a fast, high-heat step — walk away and you’ll overshoot past the 10-15°F window that separates medium-rare from medium on a cut this lean.
Step 4: Rest 10-15 minutes
Tent loosely in foil and rest 10-15 minutes. It’s a shorter rest than brisket’s hour-plus because tri-tip is a fraction of the mass, but the carryover cooking and juice redistribution still matter — slice immediately and juice runs onto the board instead of staying in the meat.
Step 5: Slice against both grains
This is the step that makes or breaks tri-tip. The roast has two muscle sections running in different grain directions, meeting roughly in the middle. Look at the surface to spot where the grain lines change direction, cut the roast into two pieces along that seam, then slice each piece against its own grain at a slight bias. Slicing the whole roast in one direction guarantees at least half of it comes out chewy regardless of how well it was cooked.
Pellets for tri-tip
Pecan is Traeger’s own recommendation for tri-tip — sweet and nutty, mild enough not to fight a lean cut with a short smoke window. Oak is the traditional choice for Santa Maria-style tri-tip, the California dish this cut is best known for, and it’s a safe default if you’re unsure. Mesquite is also authentic to the West Coast tradition, but its strength is built for hours-long cooks — on a 60-90 minute smoke it can come across sharper than intended, so use it sparingly or blend it with oak.
Pecan or oak pellets, 20 lb
- A short cook won't burn through much of the bag — one bag covers several tri-tip cooks.
- Store sealed; pellets that pick up moisture swell and can jam the auger.
Our best wood pellets for smoking guide covers the full brand and flavor lineup. For the thermometer and searing gear this cook depends on, see our best pellet grill accessories roundup.
Common tri-tip mistakes
- Pulling straight to 130°F off the smoker. Skips the sear, and skips the crust that makes this cut worth cooking this way.
- Searing too long. A cut this thin and lean overshoots fast at 450-500°F — check temperature every 30-60 seconds during the sear.
- Slicing in one direction. The two-grain structure is the single most common tri-tip mistake; always find the seam first.
- Trimming the fat cap too aggressively. A thin cap still bastes the roast during the short smoke; going bare-naked dries it out faster.
- Treating it like a mini brisket. Tri-tip has almost none of brisket’s connective tissue, so there’s no stall and no benefit to cooking it low and slow for hours.
What to cook it on
Any pellet grill that holds a steady 225°F and can climb to 450°F+ for the sear handles tri-tip well — unlike brisket, capacity isn’t the limiting factor since the roast is small. See our best pellet grill rankings for the full lineup, or best pellet smoker for beginners if this is your first smoke. Prefer a hands-off finish instead of an active sear? Our how to cook a steak on a pellet grill guide covers the same reverse-sear logic on individual steaks, and if you want the long, forgiving overnight cook instead, how to smoke a brisket on a pellet grill is the opposite end of the time spectrum.
Sources: Traeger, ThermoWorks, Hey Grill Hey, Meat Church.