Clean potatoes with water. Add 1 cup water in the instant pot steel insert. Place trivet and place potatoes on top of the trivet. Close lid with vent in sealing position.
Pressure cook on Steam mode at high pressure for 10 mins. (see notes for cooking time variation)
When the instant pot beeps, let the pressure release naturally. If in a hurry, you can release pressure 10 minutes after the beep. Remove the potatoes from the instant pot to stop additional cooking.