Water, which has been circulating from the starting point of civilization, is an essential resource for life support and a basic ingredient that cannot be missed in the cooking process. In addition to making different flavors depending on the mineral composition and salinity contained in each water, it also adjusts the usage and the time of input to bring out or change the flavor of certain ingredients. Water, which is a natural resource, has become a consumer good under the luxury strategy established by companies that want to sell clean water as environmental pollution worsens, but the voice of protecting water resources from the recent climate crisis is also increasing. In particular, the cases in Finland, Norway, and Germany, which have a system that allows all citizens to enjoy good water quality tap water, show a high level of welfare based on a solid social consensus that looks at water as a public good.