In your pressure cooker place your vegetables first at the bottom.
Pour 1 1/2 cups of beer on top of the vegetables.
Then put in your trivet or you can use this excellent sling.
Place the corned beef on top of the sling or the trivet.
Then sprinkle with the pepper pack that came with the corned beef
Finally, turn on the pressure cooker set it for 25 minutes.
Once it has cooked let the water release then I suggest being careful and using your mits as you open the pressure cooker.
Then take the corned beef out and place it on a cutting board.
Cut the corned beef at and angle to get the best flavor.
You can eat with the potatoes or place it on Rye bread with Thousand Island dressing (Ketchup, Mayo, and relish), swiss cheese, sauerkraut for a Reuben.