I washed the first day's gathering (mostly primaries) with Dawn dish detergent and I was skeptical when the feathers no longer shed water. However, I am pleased to say that it was unfounded and I should never have doubted you
They cleaned up well for me.
It's important to me specifically because my oldest daughter lives with an autoimmune deficiency and it seems best to do all I can to minimize the amount of bird feces she is exposed to. She is limited from many activities, but the doctor says its ok to shoot her bow, so we're taking advantage of that!
I've got secondaries in the freezer now and I'll go after them in a day or so. I'm steaming the first group and its working well. Although many of the feathers are reminding me that they were molted for a reason, but I should be able to use them just fine.
Thank you to all for your help!
John D.
Boise