journal

We are so confident in our water that we don't require a long-term commitment. This is the subscription model envisioned by Onsensui 99.

Because we are confident in our water, we don't bind you to a subscription. At Onsen Sui 99 Thailand, there is no minimum commitment for subscription plans. We want you to continue because you want...

Give your loved ones the same water you drink every day. | A gift of Onsensui 99

Give the water you drink every day to the people who matter most. Because you truly believe in it, you want to share it with your family and friends. Together with Onsen Sui 99, born in Kagoshima, ...

Is it okay to give water as a gift? Japanese water that makes for a thoughtful, casual present for someone special.

Share the water you enjoy with those who matter most to you. Water is a staple of everyday life, used not only for drinking, but also for making tea and coffee, cooking rice, and preparing meals. H...

Why I want to recommend Onsensui 99 to my friends | The natural hot spring water you'll want to share with those who matter most

Because it’s water you drink every day, you want to share the delicious taste you love with the people who matter most. Onsen Sui 99, drawn from a depth of approximately 750 meters in Tarumizu City...

The Reason Hojicha Aromas Differ: It's Not the Tea Leaves, It's the Water

Even though it's the same houjicha, the aroma and sweetness are different. The reason for this might not be the tea leaves, but the water. We'll introduce the relationship between houjicha and soft...

Why Chawanmushi Made in Thailand Differs from Japanese Chawanmushi | Water, Not Eggs, May Be the Factor

Even with the same eggs and the same dashi, the taste of chawanmushi can differ. The reason might be the water. We'll explore the relationship between Japanese cuisine and soft water, and tips for ...

Why Soba Dipping Sauce Tastes Different in Thailand: It's Not the Soy Sauce, It's the "Water"

When you make soba or mentsuyu in Thailand, do you ever feel like the taste isn't quite the same as what you're used to in Japan? The reason might not be the soy sauce or dashi, but the water. This...

Why Coffee Tastes Different in Thailand: It's Not Just the Beans, Water Plays a Role Too

Have you ever noticed that coffee in Thailand tastes different from the coffee you drank in Japan, even when using the same beans? The difference might not just be in the coffee beans, but also rel...

Unexpected guests in Thailand, what about drinks? The topic of Japanese households always having "drinking water" on hand.

When living in Thailand, you might sometimes wonder how to prepare drinks for unexpected guests or visiting friends and family. This article will show you how Japanese households keep drinking wate...

[2026 Edition] Thai Water Culture and Life | What are the best easy-to-drink water options for Japanese people?

Living in Thailand, you realize how deeply water is intertwined with life and culture. The hot climate, a history alongside rivers, and the daily need for hydration. This article introduces Thailan...