https://www.youtube.com/watch?v=JpxNlA3zyvw&list=PL28UkmAX_RmcPqEtBa2Wg8aZB8FuM_w6Z For more information about preserving fiddleheads and other fresh fruits and vegetables, see our Let’s Preserve fact sheet series. Or sign up for one of our hands-on food preservation workshops. We offer Pressure Gauge Testing Services.