Stack GREEN BEANS in a colander or steamer basket inside the pressure cooker and add WATER.Note: Increase water amount to 2 full cups for 8 or 10 quart Instant Pot.
Secure lid and turn pressure release valve to "Sealing".
Select MANUAL or PRESSURE COOK on HIGH for 0 (zero) minutes for firmer texture or 1 (one) minute for softer texture.
When cook cycle completes, use a long handled utensil to carefully turn the pressure release valve to quick-release the steam until the float valve drops.
Open the lid, transfer beans out of the pot, and place in ice water until they're no longer warm, stirring as needed.Alternatively, you can run the beans under cold water.
To store, allow to cool completely and refrigerate in an airtight container up to 5 days.
Notes
Use any type of fresh green bean for this recipe, including French green beans, string beans, or regular green beans.
When you see the zero minute cook time, it simply means we bring the pot up to pressure and right back down. This timing results in tender-crisp green beans.
If you don't have a steamer basket, any metal or silicone colander that fits your pressure cooker will work. Or, you can use a trivet to keep the beans from sitting in the water.
When using Instant Pot green beans for green bean casserole, it can be done a few days ahead to save time on casserole assembly day.