Before cooking, let your pork loin roast come to room temperature. Take it out of the refrigerator to sit for about 20 minutes.
Set the Instant Pot to the sauté setting. Once it show as “hot”, line it with a small layer of olive oil.
If you’d like to sauté the outer layer of your pork loin first, then place the room temperature pork loin in the Instant Pot and sear it for approximately 4 to 5 minutes per side. Then, remove it from the pot and place it on a large plate or cutting board. Turn the sauté setting off on the Instant Pot and remove the pork loin to switch the setting to meat/stew.
If you choose to sauté the pork in advance, be sure to deglaze your Instant Pot pan. Remove any of the seared brown bits on the bottom of the pot.
Insert the metal roasting rack and add 1 cup of beef bone brother to the instant pot. Once the meat/stew temperature is ready, place your pork loin on the roasting rack. Twist the lid of the Instant Pot, locked in place.
Let it cook for approximately 17-20 minutes for a medium rare pork loin, or to an internal temperature of 145 degrees.
While the pork loin is cooking use a stove top pan to make your orange maple syrup glaze by combing the orange juice, brown sugar, and dijon mustard on medium heat.
In a separate bowl, whisk the water and cornstarch until it has fully dissolved. Then, add it to the orange juice mixture on the stove. Let it come to a boil and then stir for another two minutes.
Now check the pork loin to see if it has come for a 145 degree internal temperature using a meat thermometer after releasing the Instant Pot quick pressure before removing the lid.
Once you’ve checked the pork loin and it’s to temperature, remove it from the instant pot and place it on a cutting board or plate and let it sit about 15 minutes.
Cut away the pork loin netting and place the pork loin on a serving platter and pour the glaze over top.