Rinse and dry green beans, then trim off the ends.
Place 1 cup water in the Instant Pot, then place the steamer rack in the Instant Pot.
Place green beans on top of the steamer rack, then replace lid and move vent to SEALING.
Cook on MANUAL, LOW PRESSURE for 0-2 minutes, depending how soft you like your green beans. For firmer green beans cook for 0, for softer green beans cook for 2. (We usually cook ours for 1).
QUICK RELEASE once the time has expired.
Open lid carefully, then remove green beans from the instant pot and toss with melted butter and season with salt and pepper. Serve warm.
Notes
We don’t recommend using high pressure to cook them because even cooking them for 0 minutes, the beans turn out a lot softer than we like.