I know I'm coming in late here but I boiled a batch the other night in a pressure cooker pot. Did not have the gasket in the lid, so basically just boiled them real slow overnight. Used about 7 lbs of dried Valencia peanuts (Hampton Bay brand) and 2 cups of salt. Probably 2 gallons of water. They floated for a long time and I kept stirring at least once an hour to get them water logged. Then turned the burner down to just warm, not even boiling and went to bed. Next morning I turned it back up to barely boiling which was 3 of 9 on the knob and opened one now and then to check for doneness. I didn't have to let them cool in the water for more salty flavor, they had plenty. This was one of the large pressure cooker pots, used as a boiling pot. It's almost as big as a 5 gallon bucket.