Propably the glazing problem might be bigger health risk?
"FDA has identified dietary lead exposure as a significant public health issue. Lead and cadmium are components of the glaze used in making ceramicware, and can leach into foods in significant amounts when the glaze is improperly formulated, applied, or fired. Lead can also leach from the colors used to make patterns in some ceramicware. In FY'93, approximately 15% of the imported lots analyzed were found violative for lead and/or cadmium."
Im new with tea and teaware, so I wanted to bring this up to get wiser (and peace of mind

Link to the article:
https://www.goldenmoontea.com/blogs/tea ... ing-toxins