Soak 1 cup of Soy Beans in water for a minimum of four hours (overnight is better for a plumper bean).
In your pressure cooker, place beans in 3-4 cups fresh water. Cook for 10 minutes (this 10 minutes is during the time when the pressure relief valve is rocking). Turn off heat and let cool naturally until pressure is released.
Note: If you do not use fresh water in the pressure cooker, the water will foam and may cause a malfunction with the pressure cooker.