green horns??

[Southern Bug Works]

I have a degreasing tub with heating element and the tub has a lid on it, I have had 3 deer in there and 2 of them the horns have turned green around the top. Has anyone else had this happen? I tried to wash them with dawn and hot water but had no luck. What could be causing this and what could i do to keep it from happen again? I think if i left the lid off it would help cause the water that rises is soaking into the horns but that would also waste water and power? Any ideas???

[bulldog4949]

Are the horns dry or wet?  To me it sounds like there is moisture in the tines from condensation.  When they dry, it should go away.

[Sea Wolf]

Is your heating element copper? Or copper in part? Copper will also turn things green.

Search for antlers and latex   You can also completely submerge the antlers in a larger container. What is on there should scrub off with good soap and a stiff brush when it is dry.

[Southern Bug Works]

I tried to scrub them with hot soap and water and a hard brush, but that didn't help. And one of the deer is mine so i took some sandpaper and sanded on them and that didn't even help??? My element isn't copper i guess it is stainless. I am going to try sitting them out in the sun for a few days and see if that helps.

[MR.Ed]

Try soaking them in some vinegar.