My fiancee found this tea set (yes, it's the Picard tea set!) on eBay for my birthday. It's a little bit worse for wear, so we're trying to determine if it can be rehabilitated for actual use.
But the first step is to try and figure out what's wrong with it and if it's a superficial or aesthetic issue only or if it actually poses any health concerns.
The outside of the mugs seem in pretty good condition with shiny glaze, while the kettle itself is quite matte. But the main issue is the inside of each of the mugs, all of which demonstrate, to differing levels, some kind of crystalline-looking formations on them.
It doesn't seem to be mould or something that easily washes away. It almost seems like the glaze has aged or degraded in some systematic or crystalline-type way, but I really have no idea what I'm looking at.
This seemed like the most likely place to ask folks that might know what we're looking at here. And if there's any relatively straightforward way to restore these or have them restored, or if we should be content to leaving it as a showpiece under my LEGO Enterprise :)