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

Tarumi City, Kagoshima Prefecture is known as one of Japan's leading "water capitals."
The secret is Sakurajima towering right in front of you and the surrounding Shirasu Plateau.
The miraculous natural filtration system created by volcanic activity and unique geology is the source of Hot Spring Water 99's mellow and safe taste.

What is Shirasu Plateau? Unique geology created by volcanoes

Shirasu Plateau is the area that was deposited during the large eruptions of Sakurajima and Aira Caldera.A stratum made up of hardened volcanic ash and pumiceAbout.
It is porous and allows water to pass through it like a sponge, and is widespread throughout Kagoshima Prefecture.

This geological feature acts as a "natural filtration device," filtering rainwater and groundwater over many years.
While removing impurities, it produces gentle water that contains just the right amount of minerals.

👉 Thanks to this unique geology, hot spring water 99Super soft water with a hardness of 1.7KatsuNatural alkaline pH9.5~9.9It has a rare characteristic.

Mineral balance brought about by Sakurajima's volcanic activity

Sakurajima is one of the world's most active volcanoes and is still active.
Volcanic ash and minerals released during eruptions are deposited on the Shirasu Plateau and dissolve into the water flowing underground, creating a unique mineral balance.

Although it naturally contains minerals necessary for the human body, such as calcium, potassium, and sodium, it has extremely low hardness.
This seemingly contradictory yet unique quality makes Hot Spring Water 99 a rare entity in the world.

Tarumi City is the “City of Water”

Tarumi City, at the foot of Sakurajima, has long been known as the "city of water" and has been blessed with abundant spring water.
In the local area, water has a history of being used not only for drinking, but also for agriculture, shochu production, and daily life.

Furthermore, the source of Hot Spring Water 99 is natural water drawn from 750 meters underground.
As it slowly passes through the geological formations, it is naturally alkalized and appears on the surface as water with a mellow taste.

Characteristics and reliability of hot spring water 99

• Hardness 1.7 (super soft water) → Gentle on the stomach and intestines, safe for babies and the elderly

• Naturally derived pH9.5-9.9 (highly alkaline) → Supports internal balance

• Heat sterilization treatment and strict quality control in Japan → Safety guaranteed

• International recognition including the Monde Selection Grand Gold Award

By combining natural geology and human technology, Hot Spring Water 99 is both safe, secure, and delicious.

“Blessings of Sakurajima” that can also be enjoyed in Thailand

Currently, Hot Spring Water 99 is officially sold in Thailand through **SOC Corporation (Thailand) Ltd.**.
By purchasing regularly or having it delivered to your hotel, you can easily enjoy the natural blessings of Sakurajima and the Shirasu Plateau in cities such as Bangkok.

📍 [Onsensui 99 Thailand official sales page] (link will be inserted)

Summary｜The one and only water created by nature

Sakurajima and Shirasu Plateau are magnificent natural heritage sites unique to Kagoshima.
Hot spring water 99, which has been nurtured by the geology over hundreds of years, has achieved a scientifically rare combination of "ultra soft water and highly alkaline water."

Not just drinking waterCultural value backed by nature and historywater with.
That is Onsen Water 99.