Easy Chuck Roast Instant Pot (High Pressure) Set out two 2-lb packages of chuck roast for 1 hour. Let them warm to room temperature. Pour 1 cup of water and splash some worchestershire sauce for flavor. You be the judge. Put in both chuck roasts. Optional: salt and pepper the tops if you want. High pressure cook for 2 hours. Natural release. It takes 15 minutes to get up to temp. Example chuck roast package 2 pounds Holding chuck roast for scale 1 cup water and worchestershire sauce Cut open and pour everything in as is One 2-lb chuck roast in the 6-qt Instant Pot Two 2-lb chuck roasts in the 6-qt Instant Pot 2-hr high pressure, don't keep warm so it will naturally release pressure Put the sealing lid on top Visual indicator of pressure seal Done in the Instant Pot Done chuck roast on the plate