Interesting, I just saw the
Shukei piece you referenced in your OP on Artistic Nippon. It seems he is
suggesting to use as a teapot and priced accordingly. Before buying I’d ask if when wet it has smell of clay, it could take a while to cure before use. Personally I wouldn’t want to use for tea only for water, it will be absorbent, taste like clay, and stain, but hey maybe it can work eventually for tea once it’s marinated
.
As white teapots tend to stain faster than darker teapots, it is recommended that you slow down this process by soaking your teapot in clean, cold water before every use.
I have a light beige fine clay mogake set by
Chitoshi Morita (Koudou Studio kiln). It has a very light glaze partly on the outside though, and does not stain with use. Inside it is unglazed and hasn’t stained with green tea.
A few TF members have Yamada Sou’s Aoyu (blue glazed) kyusu, those are unglazed white/beige clay inside, wonder how easily those stain. But I think the clay is very different from the Shukei you referenced. The Shukei clay is like my Japanese
white clay kettle.