How To Remove Stains From Rubberised Mobile Phones How To Remove Stains From Crackle Finish Dinnerware?

How to remove stains from crackle finish dinnerware? - how to remove stains from rubberised mobile phones

It is therefore a totally bizarre and random, but I target a number of green celadon crackle finish flat sandstone. You have already seen great when I got there, but their use has developed black spots on the crackle lines in tooth enamel. I hand-washed in the dishwasher, so I know they are clean, but they appear dirty. Does anyone know a way to remove stains without damaging the surface?