What koicha shinaoshi means
Koicha shinaoshi describes the practice of adding a small amount of hot water to thin out a bowl of koicha that has become too dense to share comfortably. In the Urasenke tradition the host may perform this when the consistency would otherwise make the bowl difficult to pass cleanly between guests. The added water is folded in slowly with the chasen, never whisked into foam, so the texture stays glossy. It is a corrective gesture rather than a separate preparation.
Also called
Koicha shinaoshi also appears as thinning the thick, koicha re-loosening.