Made in Tokoname
Tokoname has made teapots for centuries, from local clay that is left unglazed on the inside. That is why a kyusu from there pours the way it does, and why you never wash one with soap.
A yusamashi cools boiling water down to the temperature a sencha or gyokuro needs. A shiboridashi is a shallow, handleless pot for small amounts of expensive leaf. Both come from Tokoname.
Tokoname has made teapots for centuries, from local clay that is left unglazed on the inside. That is why a kyusu from there pours the way it does, and why you never wash one with soap.