It does not wash off!! The only thing that comes off with water is some of the brown coating chipping off kind of like paint revealing a pale brown shell underneath. So weird!! She has been laying since about last October, give or take a bit, so quite a long time. Hopefully, just a glitch...
This is from one of my Welsummer hens. What is going on? This is the first egg I have had from her that is a: this dark, hers are usually very mid brown, and b: this weird texture, it is very rough, not to mention the 'blood spots'
Is this something I should be concerned about? Nothing...