Haha thanks @pbe gummi bear but I think I will hold on to this one for at least a little bit It looks like dirt ? but it seems deep. I don't think it's a paint defect? I am thinking of trying something more abrasive (then dish soap) to scrub it out but not sure what to use? I don't want to risk ruining the porcelain. Any ideas?
More abrasive is not neccessarily the right thing.....
What's needed is something that will dissove whatever created the stain.....that's hard to know if you weren't the one who created it.....
Could be that something like mineral spirits or paint thinner might be just harsh enough & work at the components of the stain without damaging the finish.....
Test out on the very bottom of the kettle where there's likely to be some build-up anyway & then you can see what gives.....