Using a pressure cooker was outright scary for me the first time, but with the help of some friends and the reference to this awesome video, I got over my jitters. However, a year on, and it seems I’ve slipped up. I was watching a video on cordyceps and noticed he said he did not put the pressure regulator (cap that wiggles) on right away. He waited until a full steam got going, then did so. I went back to video for a refresher course and sure enough, do not put the regulator on right away. I also made note of the altitude comments he made, confirming that I should be reaching a pressure of 11 at my altitude.