Turn your Instant Pot on to sauté function. Set aside and allow to heat up while you make the marinade.

In a small bowl or measuring cup, add your water, lime juice, apple cider vinegar, tomato paste, cumin, chili powder, and salt. Mix well until fully incorporated.

Once your instant pot is hot, pour in your cooking oil. Place all of your meat, Garlic, and onions into the instant pot. Brown the meat completely.

Once your meat is browned, pour in your marinade over the meat. Stir well until the meat is covered in the marinade.

Close the Instant pot by twisting the lid on and closing the valve by pushing it away from you. Set the instant pot to high pressure for 30 minutes. It will take some time to build to pressure.

Once your 30-minute timer is done, allow the Instant Pot to naturally release for another 15 minutes. Once the 15 minutes is done, manually release the instant pot by using a hot pad or towel to twist the valve toward you and open.

Remove the meat from the Instant Pot to a cutting board. Shred with two forks.

Enjoy your copycat chipotle Barbacoa Beef with rice, and a taco topped with cilantro and lime, or just by itself! Enjoy!