Introduction:The Japanese beverage market has witnessed the emergence of an “ultimate artisan plain boiled water,” served in a precisely temperature-controlled ceramic kettle at 65°C, with three servings priced at 500 yen (approximately 25 RMB). How does this seemingly simple drink satisfy consumers seeking wellness and ritual? From groundwater selection to cooling techniques, this article explores the rise of warm plain water in cafés and shares expert brewing parameters and market trends.
On a bone-chilling morning, a cup of water at just the right temperature can instantly invigorate both body and mind. A certain café in Japan has transformed this everyday need into a signature service, listing it on the menu as “Ultimate Artisan Plain Boiled Water,” priced at three cups for 500 yen (about 25 RMB). This specially prepared drink is served in a ceramic kettle filled with groundwater, which is boiled and then precisely controlled to maintain a temperature ofthe golden 65°C range, becoming a new winter-warming choice.
The café revealed that the process of making plain boiled water involves subtle craftsmanship: first, a stable groundwater source is selected, which is thoroughly boiled in a ceramic kettle, then deliberately left to sitfor about ten minutesto allow the temperature to naturally drop to around 85°C, and finally served atthe human-friendly drinking temperature of 65°C. This stepwise cooling method prevents the water from becoming overly “hard” due to rapid chilling, while also preserving the activity of minerals.
Consumer feedback is polarized: supporters say “drinking it in the cold winter promotes blood circulation and is gentler on the stomach than coffee,” while some tea enthusiasts note “the pure flavor of plain water is better suited for kickstarting the body in the morning.” Notably, professional nutritionists point out that65°C is the optimal temperature balancing sterilization effectiveness and oral comfort—too high can damage the esophageal mucosa, while too low is not conducive to boosting metabolism.
Market observers have noted that this trend actually had early signs—Japanese convenience stores once trialed bottled warm plain water, and what was meant to be a limited-time promotion turned into a regular offering due toa threefold surge in sales. Nowadays, in bustling areas like Tokyo’s Kabukicho, plastic bottles filled with mineral water have become a staple drink for students and office workers, proving there is indeed consistent demand for plain boiled water.
Although netizens question “why not just boil water at home, which is more economical,” industry analysis points out that theconstant temperature control and sense of ritualprovided by cafés are the key differentiators. Professional baristas suggest that to replicate a similar experience at home, one should use glass or ceramic containers for better heat retention. After boiling, when removing the heat source and letting it sit, stirring every two minutes helps achieve even cooling, aiming to maintain a drinking temperature within the 60–65°C range.
With the rise of health-conscious eating, more cafés are expected to develop similar value-added services like “plain hot water.” Industry insiders caution that for long-term operation of such beverages, attention must be paid to water source selection (SGS-certified is recommended), container hygiene management (ceramic kettles should be deeply cleaned weekly), and temperature maintenance techniques (using digital thermometers for monitoring). This wave of consumption upgrade driven by detailed service may become a new blue ocean for cafés seeking differentiation.
The above content is compiled by CoffeeHunters, a coffee news website.
