+S Water is a super soft water with a hardness of 19 mg/L. Soft water provides a smooth mouth feel and pairs well with Japanese dishes. When used to cook rice, the rice becomes very soft and fluffy. +S Water brings out the umami of your dish’s ingredients, and enhances the flavor of your coffee or tea when used for brewing. It is rich with silica—an essential component of forming collagen—at 70mg per liter.