The left side hinge pin of the bean drop door vanished, it came unscrewed and worked its way out of the hinge without me noticing. I looked around for it but couldn’t find it. I rigged a temporary replacement pin and continued on roasting.
About two weeks later I found the pin, LODGED AND LOCKED BETWEEN THE GRINDING BURRS OF MY ESPRESSO GRINDER. Fortunately it was my grinder, unfortunately I had to replace the burrs.
It was one of those, “How could this happen to me” moments.
Happy Roasting!