"Water Differences" in Thailand: A Comparison with Japan's Soft Water Culture
What is the "difference in water" you feel in Thailand?
When I first came to Thailand,
the first thing that surprised me was...
the sensation that
"the water tastes different."
Many of you may have felt this too.
In Japan, I rarely paid attention to water.
However, when living abroad,
you may notice a "difference in water" in various daily situations,
such as drinking water, cooking, tea, and coffee.
Especially in Thailand,
a mineral water culture is widespread,
and many people regularly buy bottled water.
Japanese water is said to be mostly "soft water."
Japanese natural water is said to be mostly "soft water,"
which has a relatively low mineral content.
Therefore,
- a smooth mouthfeel,
- a mellow drinking experience,
- and compatibility with tea and dashi (soup stock)
are sometimes cited as characteristics.
It is said that the development of Japanese tea, matcha,
and Japanese food culture is also related to this Japanese water culture.
Changes in "drinking water" felt in Thailand
In Thailand,
the characteristics of water vary depending on the region and product.
Among those accustomed to soft water in Japan,
- some feel it's a bit heavy,
- the taste of tea is different,
- the flavor of coffee changes,
- or the mouthfeel feels off.
Of course, perceptions vary from person to person,
but these small differences can be felt more strongly
especially when you have just started living in a new environment.
Regular hydration is also important in Thailand
Thailand has high temperatures throughout the year,
and there are many opportunities to sweat.
Many people make an effort to rehydrate frequently
during commutes, outings, golf, gym visits,
and in their daily lives.
Therefore,
"Can I drink it continuously every day without effort?"
Some people prioritize "drinkability."
Japanese Quality Natural Alkaline Hot Spring Water "ONSENSUI99"
ONSENSUI99 is natural alkaline hot spring water
sourced from deep underground in Tarumizu City, Kagoshima Prefecture.
- pH 9.5-9.9
- Ultra-soft water with a hardness of 1.7
It features a mellow taste.
In your new life in Thailand,
- daily drinking water,
- coffee,
- tea,
- rice cooking,
and more, it is used in various situations.
Differences in water mean differences in lifestyle.
When living abroad,
you may feel differences not only in food and climate,
but also in "water."
That's why,
choosing water that suits you
in your daily life
might be one way to settle into a new life.
ONSENSUI99 Thailand
supports your new daily life in Thailand.
To everyone starting a new life in Thailand
ONSENSUI99 Thailand is supporting everyone starting a new life in Thailand by launching a
limited-time offer,
"ONSENSUI99 New Life Support Program 2026."
Five selected individuals will receive ONSENSUI99 (500ml x 30 bottles) free of charge every month for three months.
We hope to bring a little peace of mind and gentleness to your daily life in a new environment.
FAQ
Q. Why can water abroad sometimes feel difficult to drink?
In some regions abroad, "hard water" with a higher mineral content than in Japan is common.
Those accustomed to soft water in Japan may notice a difference in mouthfeel or a heavy sensation.
Q. Why is Japanese water said to be easy to drink?
Japanese water is said to be mostly "soft water," which has a relatively low mineral content.
Therefore, some people find it easy to drink due to its smooth mouthfeel.
Q. What is the difference between soft and hard water?
Soft water and hard water are classified by their mineral content (hardness), such as calcium and magnesium.
Generally, Japan has a lot of soft water, while some regions abroad have a lot of hard water.
Q. Is Thai water hard water?
The mineral water sold in Thailand varies by product, but some have a higher mineral content compared to natural water in Japan.
Therefore, those accustomed to soft water in Japan may notice a difference in taste and mouthfeel.
Q. Do coffee and matcha taste different depending on the water?
Some people feel that the flavor of coffee and tea changes depending on the hardness of the water.
Japanese tea and matcha, in particular, are often said to be well-suited to soft water.
Q. What are the characteristics of ONSENSUI99?
ONSENSUI99 is natural alkaline hot spring water sourced from deep underground in Tarumizu City, Kagoshima Prefecture.
It is ultra-soft water with a hardness of 1.7 and features a mellow taste.
Related Articles
▶ Water situation to be aware of when living in Thailand
▶ Comparison of mineral waters available in Thailand | What's the difference from Onsensui99?
▶ Why is water abroad difficult to drink? Explaining the difference from Japanese soft water
