My grandmother gifted me a pressure cooker earlier this year. I haven't used it yet as I normally use the slow cooker but I was out today and don't have enough time left to do a casserole in the slow cooker. I am thinking about using the pressure cooker. It says in the booklet that it takes 30 minutes to cook a beef bourgignon. Is that right? Only 30 minutes? Can the meat possibly be tender in that time?