Since the artisans able to make the tea utensils in the taste of the house of Sen were limited, and as they played certain roles in events and Buddhist anniversary services, the shokukata (artisan) gradually came to be fixed.
千家好みの茶道具を作れる職人は限定されており、行事や年忌における役割もあるため、徐々に職方は固定されていった。