If you’ve ever traveled to Japan or dined at a Japanese restaurant, you may have noticed an interesting phenomenon. Regardless of the season, most restaurants in Japan serve cold water.
This “cold water culture” is so deeply rooted in Japan that it raises the question, “Why do Japanese people love cold water so much?”
Even more surprising, Japanese women often drink cold water without hesitation during menstruation—something many women in other countries tend to avoid.
In this article, let’s explore the reasons and cultural background behind this unique Japanese habit.
Japanese People Are Used to Drinking Tap Water from a Young Age
In Japan, tap water quality is strictly regulated by water authorities, making it safe to drink directly. But why do Japanese people prefer cold water over room temperature water?
This preference actually relates to the characteristics of water pipes. As water flows through the pipes, it can absorb slight odors from the pipe material or its surroundings.
When the water is cold, these odors are less noticeable, making the water taste fresher. However, as the water temperature rises, these odors become more prominent and can affect the flavor.
As a result, cold water is the preferred choice when drinking tap water in Japan.
Cold Water as a Symbol of Hospitality
Before refrigerators and ice machines became common in Japan, making ice was a difficult task.
At that time, serving cold water to guests was considered the highest form of hospitality.
In pre-modern Japan, offering chilled water—rather than room-temperature water or tea—symbolized sincerity and respect from the host. This tradition has continued to this day.
That’s why even during winter, Japanese restaurants still serve cold water—not to inconvenience customers but as a gesture of respect and hospitality.
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Is It Safe to Drink Cold Water During Menstruation?
Many people notice that Japanese girls often drink cold water during menstruation without hesitation, even enjoying ice cream in the summer!
In contrast, in cultures like Indonesia and some other countries, women are often advised to drink more warm water during their periods. So, why is there such a stark difference?
This contrast largely stems from cultural beliefs in certain regions.
In Indonesia, Taiwan, and parts of Asia, Traditional Chinese Medicine (TCM) holds that cold water can lead to a “cold body” or “poor blood circulation,” which could worsen menstrual discomfort.
However, such beliefs aren’t as widespread in Japan. As a result, Japanese people generally believe that drinking cold water during menstruation depends on an individual’s physical condition.
Since Japanese people grow up drinking cold water, their bodies are used to it, and they typically don’t experience discomfort even during their period.
This is one reason why Japanese women can drink cold water and even enjoy ice cream while menstruating without any issues.
Choosing the Right Water Temperature for Yourself
The habit of drinking cold water in Japan is supported by cultural, scientific, and lifestyle factors.
Whether you drink cold water during menstruation or in daily life isn’t about what’s absolutely right or wrong.
The most important thing is to listen to your body and choose the water temperature that suits you best. Prioritizing your health and comfort should always come first!
