This recipe was tested in a 6-quart Instant Pot
To set the cooking time to "0" minutes, press the Manual button then press the minus “ - ” button to move the cooking time down to zero.
The pressure cooker will take 8 to 10 minutes to reach pressure. It will then cook the green beans for 0 minutes before immediately switching over to “keep warm” mode. When the LED digital display shows the letter “L” before the digits, this means it’s in “keep warm” mode, such as L0:01. See the step-by-step instructions in the blog post above for photos.
It’s important to instantly release the steam when the 0 minutes of cooking time is complete, otherwise the green beans will continue to cook and soften. For this reason, I always set my stove or phone timer for 8 minutes after I secure the lid, so that I’m paying attention and ready to release steam as soon as the Instant Pot beeps.
The Instant Pot comes with a metal trivet, which doesn’t work great for steaming veggies because the veggies fall over the sides into the water. For steaming vegetables, I recommend buying either a silicone steamer basket or a large mesh steamer basket
If you want plain steamed green beans, just follow the instructions for steaming the beans and don't make the sauce.