Tri-tip cooked like a roast: how to fix Bob's mistake

Tri-tip comes from the bottom sirloin. It has very little connective tissue, which means it does not need the long, high-heat cook that breaks down tough cuts like chuck or brisket. Cook it past 140°F and the muscle fibers tighten, squeeze out moisture, and leave you with something dry and chewy.

According to ThermoWorks, tri-tip should be cooked to the same doneness as a steak, with 130-135°F being the sweet spot for medium-rare. That is the temperature where it stays juicy and tender. Anything higher and you are working against the cut.

The reverse-sear is the most reliable way to cook a whole tri-tip. You start low and slow to bring the internal temperature up gently and evenly, then finish with high heat to build a crust. This order gives you more control than searing first, because you are not guessing how much heat is still traveling toward the center.

Flip calls this the "inside-out" approach. You cook the interior to your target first, then you add the crust at the end. Bob's old roast method did the opposite, cooking the outside to death while the center slowly caught up.

Plan on 30-40 minutes per pound at 225°F for the low-and-slow phase. A 2-pound tri-tip will take roughly 60-80 minutes to reach the pull temperature. Use a probe thermometer and check the thickest part of the meat. For a deeper look at probe placement and technique, check out our reverse-sear steak guide.

Once you pull the tri-tip off the heat for the sear, move fast. The sear only takes a couple of minutes per side and you want the crust, not more internal cooking.

1. 1Season the tri-tip generously with salt, pepper, and any rub you like. Let it sit at room temperature for 30 minutes.
2. 2Set your grill or smoker to 225°F.
3. 3Place the tri-tip fat-side up and insert a probe thermometer into the thickest part.
4. 4Cook until the internal temp hits 125-130°F. This is your pull temperature, not your serving temperature.
5. 5Remove the tri-tip and crank the heat to 425°F or higher.
6. 6Sear each side for 2-3 minutes until a dark crust forms.
7. 7Rest the tri-tip on a cutting board for 10-20 minutes before slicing.

When you pull the tri-tip off the heat, the cooking does not stop. The hot outer layers keep pushing heat toward the center. This is carryover cooking, and it adds about 5°F to the internal temperature during the rest. That is why you pull at 125-130°F and not at your final target.

The 10-20 minute rest also lets the muscle fibers relax and reabsorb juices that got squeezed toward the center during cooking. Cut into it too soon and those juices run straight onto your cutting board. Rest it properly and they stay in the meat where they belong.

Tri-tip has a grain that runs in two directions. The muscle fibers in the wider end run one way, and the fibers in the narrower point run at an angle. If you slice with the grain, you get long, chewy strands. Slice against the grain and you shorten those fibers, which makes every bite noticeably more tender.

Find the seam where the two grain directions meet and cut the tri-tip in half there first. Then slice each half against its own grain at about a quarter-inch thick. This one step makes a bigger difference than most people expect. For more on reading grain direction and slicing technique, the smoked turkey breast guide covers the same principle on a different cut.

• Look for the lines running through the meat before you cut.
• Divide the tri-tip at the point where the grain changes direction.
• Slice each section perpendicular to its grain lines.
• Aim for slices about 1/4 inch thick for the best texture.

Push the thermometer probe into the thickest part of the tri-tip from the side. Aim for the center of the meat. Do not let the tip touch the grill grate or sit in a pocket of fat. Both can give you a false reading. Check a second spot before you move the meat to the sear.

Start checking the temperature after about 45 minutes at 225°F. Check again every 15 minutes as it gets close to 125°F. The total time will change with the size and thickness of the meat. Weather, wind, and how often you open the lid also affect the cooking time.

Tri-tip has a thick end and a thin end, so both parts may not finish together. Point the thin end away from the hottest part of the grill. If the thin end cooks too fast, move it to a cooler spot during the sear. Keep cooking until the coolest part of the thick section reaches 145°F, then rest it for at least 3 minutes.