Hello from Homer Alaska. I am not new to having chickens. I started a new coop with 12 chicks this past spring. They have been laying eggs now for 6 wks. Recently, my neighbor asked me if I fed my pullets peanuts in any form. She said her son was showing some signs of peanut allergies, of which he is seriously allergic. We had been trading eggs for fish. It turns out... I had given my young hens a small bag of scratch and it did have a nut warning on its packaging. I have since checked all of the feed and new scratch that I use, to garrantee all is free from peanuts. I did not find much info on this topic. I would be happy to know more if anyone has knowledge on this kind of secondary contamination. How long should I wait to share my eggs again? Thanks for thoughts.