This isn't my tea pet. Why? When brewing, I do not rinse my teas. Technically speaking, this piece of ceramic will rarely touch tea, only hot water that goes into the wastewaster bowl. Nevertheless, it will still glow with time.
If the tea is good enough, why rinse? Conversely, if you do not feel confident about your teas and would like to give it a slight rinse, why bother brewing it in the first place? Afterall, gongfu tea brewing is only reserved for teas of trusted provenance.