[News Culture] The trains arrive, the doors open and passengers move on without giving much thought to what keeps the system running. Kitchen tools are picked up and used just as casually, with little attention paid to the long production process behind them.
The latest episode of EBS1’s ‘Extreme Job’ steps into two workplaces that usually remain outside public view: the Airport Railroad linking central Seoul with Incheon International Airport and a factory producing silicone kitchenware. One depends on constant vigilance, the other on minute precision. Both rely on workers whose mistakes could affect thousands of people or ruin an entire production run.
The People Behind Every Airport Train
The Airport Railroad carried an average of about 297,200 passengers a day in 2025, serving tourists, airport employees and commuters traveling between Seoul and Incheon. For riders, the journey is routine. For the crews responsible for it, every trip is a tightly managed operation.
Drivers remain alert from the moment a train leaves the depot. Familiarity with the route offers little comfort when a delayed reaction or misread signal could put passengers at risk. Their work is defined less by visible action than by the concentration required to ensure that nothing goes wrong.
That responsibility continues long after the trains leave public view. Once a vehicle has covered roughly 600,000 kilometers, it is brought in for a major overhaul. Technicians strip down key sections of the train, remove and inspect wheels, wash components and check for signs of wear that passengers would never notice.
The work often takes place underneath the carriage, where mechanics must maneuver through confined spaces while handling heavy, oil-covered equipment. In summer, trapped heat turns the depot into an even harsher environment. The strain on the neck, back and shoulders is constant, but a missed defect could have consequences far beyond the workshop.
Station staff form another layer of the operation. They help foreign travelers navigate unfamiliar ticketing systems, respond to malfunctioning machines and monitor crowded platforms. When passenger traffic surges, they move directly into the flow, guiding boarding and watching for hazards. The railroad’s reliability is built on these overlapping roles, each largely invisible until something goes wrong.
Where a Fraction of a Gram Matters
At the silicone factory, the pressure comes not from moving passengers but from producing consistent results at speed. The finished products may look simple, yet each one must pass through a sequence of carefully controlled stages before reaching a kitchen.
Workers feed and shape the material, repeating the same motions as molds cycle throughout the day. The pace is relentless, and the physical burden builds over time. A small error in the amount of silicone can distort the shape, weaken the product or force the entire piece to be discarded.
Color mixing requires even greater precision. To reproduce the shade ordered by a client, pigments must be measured to within 0.1 gram. A slight imbalance can alter the final color across a full batch, wasting material and hours of labor.
The task is handled personally by the factory owner, who has spent 37 years learning how different pigments behave. The work draws on experience that cannot be reduced to a formula alone, as temperature, material condition and mixing time can all change the result.
Production continues across multiple product lines, leaving little room to slow down. Workers must maintain both pace and consistency while dealing with the intense heat of the factory floor. What reaches consumers as an ordinary steamer, spatula or pot is the product of dozens of decisions made under demanding conditions.
By pairing a major transportation system with a small manufacturing plant, ‘Extreme Job’ looks beyond the obvious differences between the two workplaces. Both depend on people who repeat difficult tasks with extraordinary care, knowing that the value of their work lies precisely in the fact that most people never have to notice it.
The episode airs Aug. 8 at 9:05 p.m. on EBS1.
Reported by News Culture M.J._mj94070777@nc.press
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