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Two clear glasses representing purity and clarity, symbolizing clean and smooth soft water like Japanese drinking water.
hard water

What's the difference between soft and hard water? How to choose easy-to-drink water that suits Japanese preferences

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.

A clear forest stream in Japan expressing the purity and softness of japanese soft water by ONSENSUI99.
alkaline water

Why is Japanese water attracting attention overseas? The reasons and value behind its expanding global presence

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...

Hands holding a glass of water representing daily hydration and healthy lifestyle
alkaline water

What is alkaline hot spring water? A clear explanation of its differences from regular water, its features, and how to choose it.

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...

タイのレストランと冷たい緑茶 (グリーンティー)
expats-in-thailand

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.

Chilled matcha drink made with soft water in a glass, highlighting smooth Japanese texture and premium ONSENSUI99 experience
alkaline water

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.

Close-up of creamy matcha made with soft water, showing a smooth Japanese tea texture ideal for ONSENSUI99 storytelling
alkaline water

Does Matcha Dissolve in Water? The Right Way to Drink It and How to Choose Water to Bring Out Its Flavor

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.

room temperature soft water being poured into glass onsensui99
delicious water

What makes water taste good even at room temperature? Why is soft water easy to drink, and how to choose the right water?

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...

soft water japan onsensui99 natural soft water kagoshima
japanese water

What is ultra-soft water? Why is Japanese water easy to drink and how is it different from mineral water?

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...

鹿児島桜島と錦江湾の風景 温泉水99の採水地を象徴
alkaline-mineral-water

Miraculous water nurtured by Sakurajima and the Shirasu Plateau | 99 source stories of hot spring water

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...

温泉水99と和食の食卓風景 ご飯や味噌汁がふっくら仕上がる料理用の水
alkaline-mineral-water

The secret of water that makes your food delicious|Expanding the joy of food with 99 hot spring water

The water used in cooking affects the taste. We will explain why rice, soup, and Thai food become more delicious with "Hot Spring Water 99", an ultra-soft water with a hardness of 1.7.