30-Second Overview: In Taiwan, from hospital precision instruments to bank ATMs, you'll likely find a packet of green Kuai Kuai snacks anywhere there's machinery. This unique culture began in the late 1990s when engineers believed the homophone "kuai kuai" (meaning "behave well") would make equipment "behave properly." Even the BBC has written about this Taiwanese phenomenon.
Walk into any server room in Taiwan, and you'll likely witness an intriguing sight: atop expensive servers sits a packet of green "Kuai Kuai" snacks. This isn't someone's forgotten afternoon treat—it's a long-standing "talisman" in Taiwan's tech industry.
The Urban Legend That Began at National Chiao Tung University
This peculiar custom can be traced back to before 1998 at National Chiao Tung University. According to a 2011 recollection by Director Lu of the Information Technology Center at Minghsin University of Science and Technology, he had been "placing green Kuai Kuai in the research lab since his doctoral studies." Calculating backwards, the practice of "placing Kuai Kuai on machines" existed at Chiao Tung University before 1998.
The earliest public record appeared in 2003, when the China Times supplement published an article titled "Afraid of System Crashes? Here, Place a Pack of Kuai Kuai," describing how "many Taiwanese companies' server rooms commonly place a pack of Kuai Kuai on servers to reduce server failure rates."
The story that truly popularized this custom involved a graduate student. According to Kuai Kuai company CEO Liao Yu-chi's account to the BBC, a graduate student was writing his thesis but faced frequent computer crashes. He thought the equipment might need some kind of "charm," and "Kuai Kuai" perfectly suited his needs—the name meant "behave well," while the green packaging symbolized the "go" signal of traffic lights. After placing the green Kuai Kuai, his computer ran normally and his thesis was completed successfully.
The Strict Rules of Kuai Kuai
Taiwan's Kuai Kuai culture follows an unwritten code:
Must be green packaging: Only the coconut cream flavor in green packaging is effective, as green represents the normal operation green light. Yellow five-spice flavor or red chocolate flavor are believed to have adverse effects.
Never expired: Expired Kuai Kuai loses its protective power and must be replaced regularly.
Forbidden to eat: These Kuai Kuai are sacred offerings; consuming them invites mechanical failure as punishment.
The 2009 immigration computer system crash at Taoyuan Airport became a classic case of violating Kuai Kuai taboos. According to netizen "Sashimi's" social media post, when the maintenance contractor took over, they casually ate the Kuai Kuai in the server room. The next day, the computers crashed for 36 hours. While possibly coincidental, the timing was so perfect that people couldn't help but believe in the "miracle of the Kuai Kuai deity."
Spreading from Tech to All Industries
Kuai Kuai culture gradually spread from the tech industry to every corner of Taiwanese society. Before the 2004 presidential election, household registration offices worried about computers crashing at crucial moments and placed Kuai Kuai in front of computers. In 2011, a Keelung bank's frequently malfunctioning ATM had two packs of Kuai Kuai placed inside by maintenance staff (later removed after photos went viral online).
In 2014, when a major traffic accident occurred in Huwei Police Station's jurisdiction in Yunlin, someone suggested placing green Kuai Kuai for peace. Five packs were placed in the station. However, it's said that one day a patrol officer ate a pack of Kuai Kuai, and a fatal accident occurred the next day.
International Media Amazement
In 2021, the BBC wrote about Taiwan's Kuai Kuai culture with the headline "How Taiwanese People Use Green Snacks as Lucky Charms." The report drew international attention and prompted Taiwanese netizens to joke that "national secrets have been discovered" and "the secret to high yields has been exposed."
This phenomenon even extended to the aviation industry. STARLUX Airlines Chairman K.W. Chang placed a pack of green Kuai Kuai in his conference room, praying for smooth new aircraft deliveries. Photos went viral online. Liao Yu-chi personally brought Kuai Kuai for Chang to sign, hoping to launch "Kuai Kuai livery aircraft" in the future.
The Delicate Balance Between Science and Superstition
In this age of logic and data, why do even engineers believe in Kuai Kuai's divine power? The answer perhaps lies in cost-benefit calculations. Compared to the enormous losses "computer failure" could bring, buying a pack of Kuai Kuai for protection costs virtually nothing. As engineers often say: "Even if there's only a one-in-ten-thousand chance it works, it's worth trying."
This mentality of "better to believe than not" has made Kuai Kuai the most influential "deity" in Taiwan's tech industry. As The Encyclopedia of Taiwanese Urban Legends states: "As long as people cannot solve the problem of computers failing inexplicably, the Kuai Kuai deity will continue to exist."
And making computers never fail is virtually impossible. Therefore, on this island where technology and faith intertwine, green Kuai Kuai will continue guarding those precision machines, witnessing the most fascinating balance between rationality and superstition.
References
- The Unique Culture of Technology and Faith! When Did the Urban Legend of Placing Green Kuai Kuai on Machines Begin?
- Can Placing "Green Kuai Kuai" on Machines Really Bless Their Operation? Why Is "Yellow Kuai Kuai" Not Okay?
- BBC Reports on Taiwan's Kuai Kuai Culture: Who Invented Placing Green Kuai Kuai on Machines
- Kuai Kuai Culture - Wikipedia
- Taiwan's Kuai Kuai Culture Featured on BBC, Netizens Exclaim: High Yield Rate Secret Discovered!