Well, I would have suggested a white or light washcloth w/dishsoap. It can work wonders on that type of thing. I have a possessed iron and I have no idea if it gets build up on the edges even though it isn't noticeable and I get a surprised like that. This is how I remove it...and, I try to remember to clean the iron from time to time for no new surprises...oops...I better go do that right now-it's been awhile:))Skeat......who usually lands this mark on dh's white workshirt:))LOL