Presumably Listawood mugs should be safe as they coat their own don't they?
I've been using Orca coated mugs from subliblanks recently (got them the beginning of last month) no over spray on the inside.
Would be nice if some of the suppliers who frequent this forum could chime in on this thread.
P.S. If there's a list being made of suppliers selling over sprayed mugs I'd appreciate a pm with that list
Edit: Also wouldn't there be a health and safety issue or something with them being sprayed on the inside? I thought there was some issue with using plates to eat off which is why they are sold as decorative.