No liquid water
in the vacuum chamber (pressure cooker) just a small amount of water vapor. The pressure in the vacuum chamber was not a hard vacuum but it was still well below atmospheric pressure so I had to vent it to open the lid of the pressure cooker. You know that half a vacuum is still about 7 lbs per square inch. That is a low of force holding a 10 or 12 inch diameter lid on the pressure cooker!