Place the pork roast in the Instant Pot. Sprinkle with pepper, salt, and garlic powder.

Pour one bag of sauerkraut and its juices over top of the pork roast.

Close the lid and cook on high pressure for 70 minutes.

Let the steam naturally release for 20 minutes then manually release the rest.

Meanwhile, heat the remaining bag of sauerkraut on the stove top until heated through.

Remove the pork from the Instant Pot and place on a cutting board. Slice into half inch thick pieces and return to the pot.

Serve the pork over top of potatoes or rice and spoon the extra sauerkraut from the stove over top.