Oh gosh I thought it was one hour. I must have remembered your time for the pressure cooker. Or something. Well well well.Ray said to cook 2 hours, and the pressure cooker is much quicker cooking. The studies I've read indicate that heat isn't a problem so that's why in the interests of efficiency and speed I use the pressure cooker.
Other mushrooms have other constituents. White button mushrooms apparently are stars in this area of aromatase inhibition.