[2026 Edition] What is drinkable water in Thailand? Recommended natural water chosen by Japanese people and tips for choosing water
The First Thing You Notice When Living in Thailand: "The Difference in Water"
After living in Thailand for a while, many Japanese people notice something.
That is,
"The taste of the water is a little different from Japan."
Of course, there are many safe mineral waters sold in Thailand, and you won't have any trouble in your daily life.
However,
- It feels a little heavy after drinking
- It's hard to drink at room temperature
- The taste of tea and coffee is different
- The flavor of rice changes when cooked
Some people feel such small discrepancies.
Japan, in particular, has a soft water culture.
The more accustomed one is to Japanese water, the more likely they are to notice the difference in water.
Tips for Choosing Easy-to-Drink Water in Thailand
When choosing water in Thailand, some people decide based solely on price and brand.
However, since it's water you drink every day, we recommend keeping these three points in mind:
1. Soft on the palate
While hard water is rich in minerals,
- It can feel a little heavy
- It can have a unique aftertaste
Japanese people tend to prefer soft water or ultra-soft water with a smooth texture.
2. Easy to drink even at room temperature
Thailand has many hot days throughout the year,
so you unknowingly increase your water intake.
That's why,
"Can you gulp it down?"
is very important.
Water that is easy to drink even when not chilled significantly affects the comfort of daily life.
3. Convenient for cooking and coffee
Not only for daily drinking,
- Coffee
- Tea
- Rice
- Miso soup
- Soup
When considering using it for these,
water that has minimal distinctive taste and doesn't interfere with the flavor of ingredients is convenient.
What kind of water is popular among Japanese people in Thailand?
There are many kinds of mineral water in Thailand.
Some people prioritize price,
while others seek "a taste as close as possible to Japanese water."
Particularly popular among Japanese people are:
- Soft water
- Ultra-soft water
- Natural water
- Water that is easy to drink at room temperature
The longer one lives in Thailand,
the more often you hear people say, "Ultimately, choosing the water that suits you best is key."
What is ONSENSUI99 (Onsen Water 99)?
If you're looking for easy-to-drink water in Thailand, we recommend
ONSENSUI99 (Onsen Water 99)
Onsen Water 99 is a natural alkaline mineral water sourced from approximately 750m underground in Tarumizu City, Kagoshima Prefecture.
It is natural water that has been naturally filtered over many years.
Its features are:
Ultra-Soft Water
Hardness of 1.7mg/L.
It is ultra-soft water, which is rare even in Japan,
and is characterized by a mellow and gentle taste.
Natural Alkaline Mineral Water
pH 9.5-9.9.
It has natural alkalinity,
yet is characterized by its mild taste and ease of drinking.
Easy to drink even at room temperature
In Thailand, people often drink cold water,
but Onsen Water 99 is highly regarded as easy to drink even at room temperature.
In hot Thailand,
the fact that it's easy to drink even if it warms up a bit when carried around is a big attraction.
Onsen Water 99 is recommended for these people:
Onsen Water 99 is recommended for the following individuals:
Those who have just started living in Thailand
This is a time when people are likely to be confused by the differences from Japan.
Just having water that suits you for daily consumption
can significantly change the comfort of your life.
Those who miss Japanese water
After living in Thailand for a long time,
one might suddenly think,
"Japanese water was delicious."
In such moments,
the gentle taste of ultra-soft water
evokes a sense of nostalgia.
Those who want to drink with their whole family
It has a mild taste and
is easy for everyone from children to adults to drink.
Not only as drinking water,
but also easy to use for cooking,
more families are using it regularly.
Comparison Table
| Item | General Mineral Water | ONSENSUI99 (Onsen Water 99) |
|---|---|---|
| Type of water | Mineral water | Natural alkaline mineral water |
| Hardness | Varies by product | 1.7mg/L |
| Taste | Slightly hard to mellow | Very mellow |
| pH | Around neutral | 9.5 to 9.9 |
| Ease of drinking at room temperature | Varies by product | ◎ |
| Ease of use for cooking | ○ | ◎ |
| Origin | Varies by product | Tarumizu City, Kagoshima Prefecture |
If you're choosing easy-to-drink water in Thailand, pick the one that suits you best.
There's a lot of water in Thailand.
That's why,
it's important to choose not just by price, but by criteria such as:
- Ease of drinking
- Deliciousness at room temperature
- Suitability for the Japanese palate
- Sustainability for daily consumption
If you are
"looking for easy-to-drink water in Thailand"
"wanting to drink natural water similar to Japanese water"
Why not try ONSENSUI99 (Onsen Water 99) once?
Because it's water you drink every day,
a small difference can lead to greater comfort in your life.
FAQ
Q. What is the easiest water to drink in Thailand?
Soft water and ultra-soft water are popular among Japanese people. Natural water that is easy to drink even at room temperature and has littleクセ (unique taste) is especially recommended.
Q. Can I drink tap water in Thailand?
Generally, most people use mineral water or water purifiers for drinking.
Q. What kind of water is ONSENSUI99 (Onsen Water 99)?
It is natural alkaline water sourced from Tarumizu City, Kagoshima Prefecture. It is ultra-soft water with a hardness of 1.7mg/L, characterized by a mellow taste.
Q. Can Onsen Water 99 be used for cooking?
Yes.
It is natural water that is easy to use for daily cooking, including coffee, tea, rice, miso soup, and more.
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