journal

What's the difference between soft water and hard water? We compare their drinkability and characteristics, and explain in an easy-to-understand way how to choose water that suits Japanese people.

Why is Japanese water so highly regarded overseas? This article explains the characteristics of Japanese water and the reasons for its expanding global presence, providing a detailed look at its va...

What kind of water is alkaline hot spring water? We'll explain everything in an easy-to-understand way for beginners, including the difference from ordinary water, the meaning of pH, the difference...

Tips for choosing safe drinking water in Thailand | A must-see guide for travelers and residents
Explaining the key points for choosing safe drinking water in Thailand. We will introduce useful brand comparisons and features of Onsen Water 99 for travelers and residents.

The Best Water for Matcha: Why It Changes the Taste and How to Choose
The taste of matcha changes significantly depending on the water used. We will explain the differences between soft and hard water and tips for making delicious matcha in an easy-to-understand manner.

Have you ever wondered if matcha dissolves in water? The truth is, the taste and texture can vary greatly depending on the type of water. We'll explain the key points for enjoying delicious matcha.

What are the characteristics of water that tastes good even at room temperature ? We'll explain the differences between room temperature water and cold water , water hardness , and why soft water i...

One of the reasons why Japanese water is said to be easy to drink is that it is "soft water." This article will explain in an easy-to-understand manner the characteristics of ultra-soft water, how...

Naturally alkaline, ultra-soft water produced by the volcanic activity of Sakurajima and the geology of the Shirasu Plateau. The mellow taste and safety of Hot Spring Water 99 are supported by a na...
