After testing one pressure cooker for lead—and finding lead in both the interior and exterior valves, my friends brought me more and more pressure cookers to test. In the past week or so I have tested no fewer than four pressure cookers that have all tested positive for lead in the valves. These readings ranged from 5,000 ppm lead to 120,500 ppm lead! Here’s the link to a study about lead found in pressure cooker valves.
For the lead-levels found in each of these pressure cookers, please click through to the Facebook page where we originally posted the images.