Pressure cooking flank steak shortens the cook time dramatically while breaking down the meat’s tough fibers. If you want to know how long to cook flank steak in pressure cooker, the answer usually lands between 25 and 35 minutes at high pressure for a 1.5 to 2 pound piece.
That range depends on thickness, whether you slice it first, and how tender you want the final result. This guide breaks down the exact timing so you can get it right the first time.
How Long To Cook Flank Steak In Pressure Cooker
Here is the short answer before we get into the details. Timing is everything with this cut because flank steak is lean and full of long muscle fibers.
- Whole flank steak (1.5 to 2 lbs): 25 to 30 minutes on high pressure
- Whole flank steak (2 to 2.5 lbs): 30 to 35 minutes on high pressure
- Sliced into strips: 15 to 20 minutes on high pressure
- Cubed for stew-style dishes: 20 to 25 minutes on high pressure
Always add 10 to 15 minutes for natural pressure release. This step matters just as much as the cook time itself.
Why Flank Steak Needs Pressure Cooking
Flank steak comes from the abdominal muscles of the cow. Those muscles get a lot of work, which makes the meat tough and fibrous.
On a grill or in a skillet, you cook it fast and slice it thin against the grain. In a pressure cooker, the science works differently. High heat and steam under pressure break down collagen and connective tissue in a fracton of the time.
The result is a steak that shreds easily with a fork. It stays moist becuase the sealed environment traps steam and liquid.
Factors That Change The Cook Time
Thickness Of The Meat
A thin flank steak (about 1 inch) cooks faster then a thick one (1.5 inches or more). Add 5 minutes for every half inch beyond the one-inch mark.
Your Pressure Cooker Model
Electric models like Instant Pot and stovetop models heat at different rates. Stovetop cookers tend to run a bit hotter, so you may shave off 3 to 5 minutes.
Altitude
If you live above 2,000 feet, add 5 percent to your total cook time. Above 4,000 feet, add 10 percent.
Desired Texture
Want sliceable meat? Stick to the lower end of the range. Want shreddable meat for tacos or sandwiches? Go 5 minutes longer.
Step-By-Step Pressure Cooker Flank Steak
Follow these steps for a reliable result every time.
- Pat the flank steak dry with paper towels. Season both sides with salt, pepper, and any rub you like.
- Set your pressure cooker to saute mode. Add 1 tablespoon of oil.
- Sear the steak for 2 to 3 minutes per side. This builds flavor, but you can skip it if you are short on time.
- Remove the steak and add 1 cup of beef broth or water to the pot. Scrape up any browned bits.
- Place the steak back in the pot. It can sit on a trivet or go right into the liquid.
- Lock the lid and set the valve to sealing.
- Cook on high pressure for 25 to 30 minutes for a 1.5 to 2 pound steak.
- Let the pressure release naturally for 10 to 15 minutes. Then quick release any remaining pressure.
- Check doneness with a fork. If it does not shred easily, cook for 5 more minutes.
- Rest the meat for 5 minutes, then slice against the grain.
Tips For Better Results
- Always slice against the grain. This shortens the muscle fibers and makes each bite more tender.
- Do not overfill the cooker. Leave at least one-third of the pot empty for steam circulation.
- Use at least 1 cup of liquid. Pressure cookers need moisture to build steam.
- Add aromatics like garlic, onion, and bay leaves to the liquid for extra flavor.
- Let the meat rest before slicing so the juices redistribute.
Common Mistakes To Avoid
One big mistake is skipping the natural release. If you quick release right away, the meat can turn tough and dry.
Another mistake is cooking frozon meat without adjusting the time. Add 10 to 15 minutes if your steak goes in frozen.
Finally, do not slice with the grain. It ruins the texture no matter how well you cooked the meat.
What To Do With Leftover Flank Steak
Shredded flank steak works great in tacos, quesadillas, and rice bowls. You can also pile it onto sandwiches or mix it into a salad.
Store leftovers in an airtight container in the fridge for up to 4 days. Reheat gently with a splash of broth so it does not dry out.
Final Timing Cheat Sheet
- 1.5 lb whole steak: 25 minutes high pressure
- 2 lb whole steak: 30 minutes high pressure
- 2.5 lb whole steak: 35 minutes high pressure
- Sliced strips: 15 to 20 minutes high pressure
- Cubed pieces: 20 to 25 minutes high pressure
Use these numbers as your starting point. Adjust by 5 minutes up or down based on your cooker and your prefered texture.
With a little practice, you will nail the timing every time. Pressure cooking turns a tough cut into a tender, flavorful meal in well under an hour.