Have you ever drunk tap water directly?
Water condition is different depending on each country, but people cannot drink tap water directly in the most of the countries.
The safety of Japanese tap water is in highest level in the world. We researched the reason why the tap water in Japan is in such a high level.
Japanese water resource is very rich because Japan is an island surrounded by sea ans has many rivers and lakes all over the place.
Japan is also the country has lots of nature such as mountains and woods where natural water springs and underground water exist.
Japan is blessed by nature and that makes Japanese water clean and safe!
Tap water isn’t natural but the quality is high since the safety is managed tightly by waterworks bureau which gives 51 sta･･･