Originally Posted by Smallaxe
I had read a rather extensive history about Milorganite last year. It wasn't very informative about the contents and procedure of removing heavy metals etc., so I am not surprised you didn't find anything about iron either. Just that it is safe and FDA approved.
I haven't checked to see if its dissolvable in water. I will leave that testing jar outside.
Yeah, Good point!....I wouldn't want a jar of Milorganite soaking in water anywhere near
And wouldn't it be logical that engineers in Milwaukee would use some sort of magnetic process to separate elemental iron from other non-magnetic metals that come across their poop line?