The Kumidashi is a short, light, handle-free teacup traditionally used to serve Sencha during Senchadō: the Japanese leaf tea ceremony (as opposed to Sadō for matcha powdered green tea). Kumidashi with mouths that spread outwards are particularly suitable for high-grade teas as the shape helps to amplify the aroma. Often sold in sets of five, Kumidashi are the choice of teacup when entertaining guests.
Kyusu 急須
In Japanese, Kyusu simply means "teapot" and globally has come to represent the traditional ceramic side-handled model most commonly used to brew loose leaf tea across Japan. Primarily designed for green tea, the Kyusu tends to be smaller than Western teapots and are completely emptied after each steeping to prevent the tea from over-brewing and becoming bitter. Conveniently, they often have a strainer built into the spout to keep the leaves inside the pot.