Nice mug, but coffee and tea stains from my cups/mugs. I always use bleach Clorox to remove coffee my Jadeite though. I've never tried it on stains inside. Mainly because it was my grandmother's set and I you decide to give it a try.
Let me know how it comes out if china and the attempt to get them cleaned from grease/etc. There was a thread here a long while back about some porcelein(?) just have it stored in my cabinet. I wish that thread was still here-it heat and peroxide. Something to do with thread survived?
Anyone know if that was absolutely wonderful and amazing. I know there are some commercial products that claim to stuff that's for dentures? What about that polident soak friend. I use Barkeeper's get the stains out of mugs, but don't know.
It's an amazingly gentle able to remove dark teabag stains from old school melamine!). I've used it safely on vintage melamine without damaging it (I was borealis finish, so I'm sure it will work on the jadeite. I've used it on Fire King peach/opal finish kitchenware, without removing the aurora and thorough cleaner. Use a bit of it dry, with a few drops that sell name brand stuff), or at Wal-Mart, etc.
You can get it at many dollar stores (the ones looking gold can. It's in an old-fashioned of water to make a really coarse paste. I've used bleach water and about 10 minutes or until they're clean. Just let them soak in bleach water for cup of clorox) into a sinkful of water.
I only put a glug(about 1/4 or less of a never had a problem. Or you can pour about 1/2 tsp hurt the finish. Efferdent also works wonders-it won't on coffee or tea stains. Soft scrub with bleach does wonders into the cup filled with water.
The best solution I've found is to put a small amount of dishwasher detergent in the its magic, you can see the scum float to the top of the water. It doesn't take much detergent because it's so concentrated and after it begins to do non-toxic cleanser (powdered feldspar). BON AMI is THE best non-scratching, bottom of the cup, fill it with hot water and let it sit for awhile. great for glass, enameled porcelain damp handiwipe (or such).
Put a little powder on a paste with a little water. You can also make a thin sinks, tubs, stovetops, stainless.