An Instant Pot pot roast turns fork-tender only when the pressure time matches the size and thickness of the beef, and that’s where most recipes leave you guessing. A 3-pound chuck roast cut into two pieces needs about 60 minutes at high pressure plus a 15-minute natural release. Below you’ll find the full recipe, a minutes-per-pound chart for other sizes, and the fixes for a roast that still comes out tough.
- Recipe
- Why This Instant Pot Pot Roast Turns Fork-Tender
- How Long to Cook Pot Roast in an Instant Pot, Per Pound
- Why Is My Instant Pot Pot Roast Still Tough?
- How to Thicken Pot Roast Gravy
- Tips and Mistakes to Avoid
- Substitutions and Variations
- Storage and Reheating
- Equipment and Our Top Picks
- FAQ
- The Bottom Line
At a Glance
- Short answer: 60 minutes at high pressure for a 3- to 3 1/2-lb chuck roast cut in two pieces, then a 15-minute natural release. Plan on roughly 18-20 minutes per pound.
- Time: 15 min prep · about 2 hr 15 min cook (including coming to pressure and release) · about 2 hr 30 min total
- Serves: 6 · Difficulty: easy · Pot size: 6 quarts or larger
- The one thing that makes it work: the beef cooks alone first, and the potatoes and carrots get their own short 5-minute cook, so the meat is tender and the vegetables aren’t mush.
Recipe
Fork-Tender Instant Pot Pot Roast · Serves 6 · Prep 15 min · Cook about 2 hr 15 min (sear 25 min, pressure cook 60 min, natural release 15 min, vegetables 5 min, gravy 5 min, plus time to come to pressure) · Rest 10 min (while the vegetables cook) · Total about 2 hr 30 min. Made for a 6-quart or 8-quart electric pressure cooker.
Instant Pot Pot Roast
Ingredients
Method
- Season the beef. Pat both pieces dry with paper towels and season all over with the salt and pepper. If you have time, let them sit 30 minutes at room temperature, or salt them the night before and refrigerate uncovered.
- Sear. Set the Instant Pot to Sauté on the highest setting and add the oil. When it shimmers, brown one piece of beef at a time, 4-5 minutes per side, until a deep brown crust forms. Move the seared beef to a plate.
- Cook the aromatics. Add the onion wedges and cook 3 minutes, stirring, until they start to soften. Stir in the garlic and tomato paste and cook 1 minute, until the paste darkens to brick red.
- Deglaze completely. Pour in the wine and scrape the bottom with a wooden spoon until no brown film is left, about 1-2 minutes. A clean bottom is your best protection against the Instant Pot burn message.
- Add the liquid and beef. Stir in the broth, Worcestershire, thyme and bay leaves. Nestle the beef back in with any juices from the plate; the liquid should come about a third of the way up the meat.
- Pressure cook. Lock the lid, set the valve to Sealing and cook at high pressure for 60 minutes (see the chart below for other sizes). The pot takes 10-15 minutes to come to pressure before the countdown starts.
- Release naturally. Let the pressure drop on its own for at least 15 minutes, then turn the valve to Venting to release what’s left.
- Test for doneness. Push a fork into the thickest part and twist. The beef is ready when it pulls apart with almost no resistance. If it feels springy or tight, seal the pot again and cook 10 minutes more, with another 10-minute natural release.
- Rest the beef. Lift the beef onto a cutting board and tent it loosely with foil.
- Cook the vegetables. Add the potatoes and carrots to the liquid in the pot and sprinkle with the 1/2 tsp salt. Seal and cook at high pressure for 5 minutes, then quick release. A paring knife should slide into a potato easily.
- Make the gravy. Transfer the vegetables to a platter with a slotted spoon and discard the bay leaves. Skim the fat from the surface (or pour the liquid through a fat separator and back into the pot). Set to Sauté, bring the liquid to a boil, whisk in the cornstarch slurry and cook 1-2 minutes, until the gravy turns glossy and coats a spoon. Taste and add salt if needed.
- Serve. Slice the beef against the grain into thick slices, or break it into large chunks with two forks. Arrange it with the vegetables, spoon the gravy over and sprinkle with parsley.
✓ Kitchen-tested · Nicole cooked this recipe in our kitchen on October 21, 2026. What this means
Why This Instant Pot Pot Roast Turns Fork-Tender
- Chuck, cut in two. Chuck is rich in collagen, which melts into gelatin under long, moist heat. Two smaller pieces cook more evenly than one thick block, so the center finishes at the same time as the outside.
- Enough time at pressure. Most tough pot roasts are undercooked, not overcooked. 60 minutes for 3 to 3 1/2 lb takes chuck past its firm stage into the tender one.
- A natural release. Letting the pressure fall slowly keeps the liquid from boiling hard inside the meat, so the beef stays juicy instead of tightening up.
- Vegetables in a second, short cook. Potatoes and carrots need about 5 minutes under pressure, not 75. Adding them after the beef keeps them whole and lets them soak up the braising liquid.
How Long to Cook Pot Roast in an Instant Pot, Per Pound
Thickness matters more than weight. Heat has to travel to the center of the meat, so one tall 4-lb block needs far longer than the same 4 lb cut into two flatter pieces. Use this chart as a starting point, then trust the fork test.
| Chuck roast | High pressure | Natural release |
|---|---|---|
| 2 to 2 1/2 lb, in 2 pieces | 45-50 min | 15 min |
| 3 to 3 1/2 lb, in 2 pieces | 60 min | 15 min |
| 4 lb, in 2 pieces | 70 min | 15-20 min |
| 3 to 4 lb, whole and over 3 inches thick | 75-80 min | 20 min |
| 3 lb, cut into 3- to 4-inch chunks | 45 min | 15 min |
That works out to roughly 18-20 minutes per pound for pieces about 2 1/2 inches thick. Published recipes range from about 40 to 75 minutes for a similar roast, depending on how thick the cut is and whether the goal is sliceable or shreddable beef. These times aim for beef that slices cleanly but pulls apart with a fork. If you like it falling apart, add 10 minutes.
Pot size doesn’t change the time, but it changes what fits. A 3- to 3 1/2-lb roast plus vegetables fills a 6-quart pot comfortably, such as the Instant Pot Duo Plus 6 Qt; for a 4-lb roast or a double batch of vegetables, an 8-quart is easier. Our Instant Pot size guide compares what each size holds.
Why Is My Instant Pot Pot Roast Still Tough?
A tough pot roast almost always has a simple cause. Find the one that matches your last attempt:
| Problem | Likely cause | Fix |
|---|---|---|
| Firm, springy and hard to cut | Not enough time at pressure | Seal again for 10 minutes, natural release, fork-test |
| Tender outside, tight center | Roast too thick for the time | Cut it in two before searing, or use the whole-roast time |
| Dry and stringy | Lean cut such as round or sirloin tip | Use chuck (chuck roast, chuck eye or shoulder) |
| Tough after a quick release | Pressure dropped too fast | Let it release naturally for at least 15 minutes |
| Mushy vegetables, bland beef | Everything cooked together for the full time | Cook the vegetables separately for 5 minutes |
The first row covers most cases. Chuck tightens during the first part of cooking, then softens once its collagen breaks down. Stop in that middle window and it seems like a failure, when it only needed another 10 minutes.
A tough pot roast is almost never overcooked. Seal the lid, give it 10 more minutes, and test again.
The same logic applies to stew. If your trouble is chewy beef from a slow cooker, our guide to why slow cooker beef stew turns out tough covers that method in detail.
How to Thicken Pot Roast Gravy
After the second cook, you’ll have about 3 cups of liquid. The rule of thumb is 1 tbsp cornstarch per cup for a medium-bodied gravy, always mixed with cold water first so it doesn’t clump. Bring the liquid to a full boil on Sauté before adding the slurry: cornstarch only thickens once it reaches a boil.
Skim the fat before you thicken. Chuck releases a lot of it, and a greasy layer keeps the gravy from looking glossy. For a thicker, cornstarch-free version, blend a few cooked onion wedges and one potato into the liquid with an immersion blender.
Tips and Mistakes to Avoid
- Don’t skip the deglaze. Browned bits stuck to the bottom are the main trigger of the burn warning, which stops the cook halfway.
- Use at least 1 1/2 cups of thin liquid. An electric pressure cooker needs steam to build pressure; thick sauces and tomato paste alone won’t do it.
- Don’t crowd the sear. Brown one piece at a time. Two pieces at once steam instead of browning.
- Don’t quick release the beef. Save the quick release for the vegetables only.
- Slice against the grain. Look for the lines running through the meat and cut across them, so each slice has short fibers.
Substitutions and Variations
| Swap | Result |
|---|---|
| Red wine → beef broth + 1 tsp red wine vinegar | Works well; a little less depth |
| Chuck roast → boneless short ribs | Works; richer, use the chunk time (45 min) |
| Chuck roast → brisket flat | Works; slices neatly, add 10 minutes |
| Chuck roast → bottom round or eye of round | Not recommended; turns dry and grainy |
| Baby Yukon Golds → russets in 2-inch chunks | Works; softer edges that thicken the gravy |
| Cornstarch → 1/4 cup flour | Works; whisk into 1/2 cup liquid and simmer 3-4 minutes |
For a variation, add 8 oz (225 g) halved cremini mushrooms with the vegetables, or 2 celery ribs cut in 2-inch pieces. For a tangier, deli-style roast, swap the wine for 1/2 cup of the brine from a jar of pepperoncini and add 4-5 of the peppers with the broth.
Storage and Reheating
Refrigerate the beef in some of its gravy in airtight containers for up to 4 days. The gravy sets firm when cold because of the gelatin; that’s normal. Reheat gently in a covered pan over medium-low heat with a splash of broth.
The beef and gravy freeze well for up to 3 months. Freeze the potatoes separately or not at all, since they turn grainy once thawed.
Equipment and Our Top Picks
We make our pressure-cooker recipes in a 6-quart electric pressure cooker. Beyond the pot, a long slicing knife and a board that catches the juices make serving a roast much tidier. Moving from a slow cooker? Our slow cooker to Instant Pot conversion guide explains how to adapt your own recipes.
- Instant Pot Duo Plus 6 Qt (WhisperQuiet) — a quieter steam release, a stainless pot that doesn’t spin while you sear, and room for a 3 1/2-lb roast with vegetables. Buyers praise how easy it is to use; the most common complaints are units that fail within months and a preheat stage that can run long.
- Cutluxe 12″ Carving and Slicing Knife — a long, thin blade that slices a pot roast in one stroke instead of sawing it apart. Well reviewed by thousands of verified buyers for sharpness out of the box and comes with a sheath.
- OXO Good Grips Carving and Cutting Board — a deep juice groove that keeps the cooking juices off the counter, a non-slip base, and it’s dishwasher safe. Some buyers report warping or deep knife marks over time.
Product picks are research-based: manufacturer specs, verified buyer feedback and independent reviews such as Wirecutter’s electric pressure cooker guide. We haven’t tested these specific models ourselves. Last verified: October 9, 2026. How we work.
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may change — please verify on Amazon before buying.
FAQ
Should I use natural release or quick release for pot roast?
Natural release, for at least 15 minutes. The meat keeps cooking gently as the pressure falls, and the liquid inside it doesn’t boil out all at once. Save the quick release for the short vegetable cook. For the science behind it, see pressure cooking on Wikipedia.
Can I put the potatoes and carrots in from the start?
You can, but after 60-75 minutes under pressure they turn soft and watery, and potatoes can break apart into the gravy. If you want a one-cook version, cut the vegetables into large 3-inch chunks and set them on top of the beef rather than under it.
Is Instant Pot pot roast as tender as slow cooker pot roast?
Yes, when it gets enough time. Both methods are forms of braising, and chuck turns tender the same way in each. The pressure cooker gets there in about 2 1/2 hours instead of 8, with a slightly firmer, more sliceable texture.
The Bottom Line
A fork-tender Instant Pot pot roast comes down to three choices: chuck cut in two pieces, about 60 minutes at high pressure for 3 to 3 1/2 lb, and a natural release. Give the vegetables their own 5-minute cook and finish with a quick cornstarch gravy. For more pressure cooker and slow cooker dinners, browse all our pressure and slow cooking recipes.
Get Our Free Dessert Recipe eBook
Join the Kitchen Unveiled newsletter and get our free dessert recipe eBook when you sign up. Subscribe now and get your free eBook →
You might also like: Instant Pot Butter Chicken in 30 Minutes and Dump-and-Go Slow Cooker Chili.
