Eikun sake uses water from a source called "Fusui", rated as one of the top 100 sources of water in Japan. This water source is located just south of Kyoto, the cultural - and former imperial - capital of Japan.

Water Lords is made from Gohyakumankoku rice. This rice is most commonly found growing along the northwestern coast of Japan, although the region of Niigata is often credited with putting this rice strain on the map. It yields a classic style of sake; clean, light, and refreshing.