Pour your soaked beans into a strainer and rinse them thoroughly. Tap the strainer against the sink, allowing as much liquid to drain out of the strainer as possible.
Add the beans, fresh water, garlic powder and onion powder to the Instant Pot and stir. Lock the lid into place and set the timer for 20 minutes, using the manual setting.
When the timer goes off, use the natural release method until all of the pressure is out of the Instant Pot. Take off the lid, add the salt and allow the beans to cool for about 10 minutes.
Transfer the beans and the remaining liquid to your food processor and process until totally smooth.