100 Cups a Day? Why a Chinese Cafe Pulled Viral Urine-Boiled Egg Coffee

A cafe in Dongyang, Zhejiang, drew global attention in March 2026 after local media reports said its Americano made with “virgin boy eggs” — eggs boiled in the urine of young boys — was selling more than 100 cups a day on weekends at 28 yuan per cup. Within days, the drink was reportedly withdrawn after the backlash spread online, turning a niche local tradition into an international food-safety and culture story.

What made the story travel so fast was not only the ingredient list, but the collision of three trends at once: China’s highly competitive cafe market, the social-media race for novelty drinks, and the revival of hyper-local food traditions as marketing hooks. In Dongyang, the eggs involved are known as tong zi dan, often translated as “virgin boy eggs,” a springtime specialty long associated with the city in Zhejiang province. Publicly available reporting and reference material describe the eggs as a traditional local delicacy prepared by simmering them in urine collected from boys, usually under age 10.

Why 28 Yuan and 100 Cups Turned a Local Specialty Into News

The numbers matter because they show this was not an isolated kitchen experiment. At more than 100 cups a day on weekends, the beverage had crossed from stunt menu item into a meaningful traffic driver for a small cafe, at least temporarily. At 28 yuan, the drink was priced accessibly enough to encourage curiosity purchases, especially in a market where unusual coffee combinations have become a proven way to generate footfall and social posts.

China’s coffee sector has expanded quickly, and brands increasingly localize menus with ingredients that would once have seemed too niche or too strange for mainstream chains. Industry reporting shows KCOFFEE, Yum China’s coffee brand, had opened its 200th store by July 2024, while broader coverage of China’s beverage market has highlighted the speed at which chains launch localized seasonal drinks. That context helps explain why a Dongyang cafe might try to package a centuries-old local food into a coffee format designed for virality.

In other words, the cafe was not operating in a vacuum. It was responding to a market where novelty often functions as advertising. The difference here is that the ingredient crossed a line for many consumers outside Dongyang, and for many inside it as well.

How Dongyang’s Spring Egg Tradition Became a Coffee Add-In

Tong zi dan is not new. Background sources describe it as a longstanding spring food in Dongyang, where vendors and households have historically prepared eggs by simmering them in urine collected from young boys. The dish has been framed locally as restorative or seasonal, though modern medical literature and mainstream health reporting do not establish evidence-based benefits from consuming urine or urine-boiled eggs.

That gap between folk belief and modern food expectations is central to the backlash. The cafe reportedly marketed the drink with claims that it could help prevent spring sleepiness and summer heat stroke. Those are the kinds of wellness-adjacent claims that can boost curiosity in a crowded beverage market, but they also invite scrutiny because they imply functional benefits that are not supported by established clinical evidence in the sources reviewed.

The mechanism of virality was straightforward: a familiar format, coffee, carried an unfamiliar and highly controversial local ingredient. That made the drink easier to photograph, easier to explain in a headline, and easier to debate online than the traditional eggs alone.

March 2026 Backlash: Why the Drink Was Pulled So Fast

The available public material indicates the drink was withdrawn after criticism spread. Even without a detailed official statement in the sources reviewed, the likely pressure points are visible. First, the ingredient itself triggered disgust and food-safety concerns among many readers. Second, the use of a child-linked bodily fluid in a commercial beverage created an immediate reputational risk. Third, the cafe’s health-style marketing claims likely intensified scrutiny rather than softening it.

There is also a broader reputational backdrop. China’s restaurant and beverage sector has repeatedly faced viral controversies tied to sanitation and bodily-fluid incidents, making audiences especially sensitive to anything that appears to blur the line between tradition and hygiene. That does not make the Dongyang drink equivalent to those incidents, but it helps explain why the reaction was so swift and so negative once the story escaped local context.

What the 2026 Episode Says About China’s Novelty-Coffee Race

The Dongyang case fits a wider pattern: cafes in China have experimented with increasingly unusual ingredients to stand out in a saturated market. Coverage in recent years has documented drinks involving century egg, oysters, octopus, vinegar and other regionally resonant flavors. The commercial logic is simple — if a drink is strange enough to be shared, it can function as free marketing.

But the urine-boiled egg coffee also shows the limit of that strategy. Novelty works when consumers perceive the ingredient as adventurous but still acceptable. Once a product is framed as unsanitary, exploitative or medically dubious, virality can reverse from promotion into reputational damage. That appears to be what happened here: the same shock factor that drove attention also made the drink difficult to defend once the story reached a broader audience.

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Conclusion

The Dongyang coffee story was never just about one shocking ingredient. It was about what happens when a deeply local tradition is repackaged for the algorithmic attention economy. The reported numbers — 28 yuan a cup and more than 100 cups a day on weekends — show why the cafe tried it. The speed of the withdrawal shows why it could not last. In a crowded coffee market, novelty can buy visibility, but it cannot guarantee acceptance once a product is judged outside its original cultural setting.