|A 'magic' sponge and a white bowl before cleaning|
Because tea has very light and natural flavors, we don't like to use chemical detergents to clean our teaware. (Robert Parker, the wine critic, observed that, too often, wines are spoiled by glasses that haven't been well rinsed with fresh water).
Sometimes, it can be enough to regularly wash our cups with water and our bare hands. But, some tea stains can be too tough to remove this way. That's when I use my 'magic' sponge. First, I rip (or cut) a small piece from the sponge. I wet this piece with only cold water. And then I use this wet piece to wipe the tea stains away. The sponge's micropores are finely abrasive and work best on glazed surfaces.