How to Cook Frozen Pork Roast in an Instant Pot: A Comprehensive Guide

Pork roast is a versatile and delicious dish that can be enjoyed in various ways. However, thawing frozen pork roast can be a time-consuming process, especially if you’re short on time. Fortunately, the Instant Pot offers a convenient solution, allowing you to cook frozen pork roast quickly and efficiently. This guide will provide a step-by-step walkthrough of how to cook frozen pork roast in an Instant Pot, ensuring tender and flavorful results every time.


  • 1 frozen pork roast (2-3 pounds)
  • 1 cup barbecue sauce
  • Juice from one lemon
  • 1/4 cup coconut aminos (or soy sauce)
  • 1/4 teaspoon coriander seeds
  • 1 teaspoon garlic salt


  1. Prepare the Instant Pot: Pour 1 1/2 cups of water into the Instant Pot to prevent the roast from burning on the bottom.

  2. Season the Roast: Place the frozen pork roast in the Instant Pot and season it with barbecue sauce, lemon juice, coconut aminos, coriander seeds, and garlic salt.

  3. Cook the Roast: Close the lid of the Instant Pot, set the valve to “sealing,” and cook on high pressure for 90 minutes.

  4. Natural Pressure Release: Once the cooking time is complete, allow the Instant Pot to naturally release pressure for 30 minutes. This step is crucial for tender meat.

  5. Serve: Remove the pork roast from the Instant Pot and slice it thinly. Serve with your favorite sides and enjoy!

Tips for Success

  • Use a Natural Pressure Release: Allowing the Instant Pot to naturally release pressure will result in more tender meat. Avoid using the quick release method, as this can make the pork tough.

  • Add Liquid: Adding water to the Instant Pot prevents the roast from burning on the bottom. However, you don’t need to add too much liquid, as the pork will release its own juices during cooking.

  • Check the Internal Temperature: To ensure the pork is cooked through, insert a meat thermometer into the thickest part of the roast. The internal temperature should reach 145 degrees Fahrenheit.


  • Seasonings: Feel free to adjust the seasonings to your taste. You can add additional herbs and spices, such as rosemary, thyme, or paprika.

  • Sauce: You can use your favorite barbecue sauce or experiment with different sauces, such as teriyaki or honey mustard.

  • Sides: Serve the pork roast with a variety of sides, such as mashed potatoes, roasted vegetables, or a fresh salad.


  • Refrigeration: Store leftover pork roast in an airtight container in the refrigerator for up to 3-5 days.

  • Freezing: If you want to freeze the pork roast, allow it to cool completely before wrapping it tightly in plastic wrap and placing it in a freezer-safe bag. It will keep in the freezer for up to 4-12 months.

Cooking frozen pork roast in an Instant Pot is a quick and easy way to enjoy a delicious and satisfying meal. By following the steps outlined in this guide, you can achieve tender and flavorful pork roast every time. Experiment with different seasonings and sauces to create your own unique variations. Whether you’re a seasoned cook or a beginner in the kitchen, the Instant Pot makes it simple to prepare frozen pork roast with ease.

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How long to cook frozen roast in Instant Pot?

Secure instant pot lid and pressure cook on high for 90 minutes with a natural pressure release (usually takes 20-30 additional minutes to fully release pressure). Once pressure is fully released, take the roast out to rest on a plate or rimmed cutting board, tented with foil. Meawhile, make gravy.

How long does it take to cook a frozen pork roast?

Place the roast on a rack in a roasting pan, fat side up. Cook for approximately 25-30 minutes per pound, or until the internal temperature reaches 145°F (63°C). Remove the roast from the oven, tent it with foil, and let it rest for 10-15 minutes to allow the juices to redistribute.

Why is my pork roast tough in Instant Pot?

It is more common to undercook pork in the Instant Pot than overcook it. If the meat seems tough, it is most likely undercooked and needs additional time.

Do you need to add time for frozen meat in Instant Pot?

Do Expect Cook Times to Vary: A frozen piece of meat will not only take longer to cook, but it will also take longer for the Instant Pot to come to pressure. Because of this, be prepared to add a few extra minutes to your overall cook time.

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