Went to Lowes to pick up some powder bar keepers friend in prep for hopefully finding some bottles and saw this. Thought I'd try it out on some stuff. Says it cleans copper, porcelain, and other stuff. Anyone used it?
I've been using this on my ACL bottles, and it works great. It has a very small amount of oxalic acid in it, so it does an especially good job on light rust stains.
Always looking for good Rhode Island bottles and Rhode Island "marked: stoneware.