The first webcam pointed at a coffee pot. In 1991, researchers at the University of Cambridge Computer Laboratory rigged a camera to monitor the percolator in the so-called Trojan Room, so nobody trudged down the hall for an empty jug. By November 1993 it went live on the web, becoming the first webcam the world could watch.
What was the Trojan Room coffee pot?
The Trojan Room was a corridor in the Cambridge Computer Lab where a single filter coffee machine served a building full of caffeine-dependent computer scientists. The pot was popular and frequently empty, and the people who cared most about it sat several floors and corridors away. A trip to refill your mug had decent odds of ending in disappointment.
So Quentin Stafford-Fraser and Paul Jardetzky built a fix. They aimed a camera at the pot, wired it into a frame-grabber on a spare Acorn machine, and wrote software that captured a small image a few times a minute. Jardetzky wrote the server; Stafford-Fraser wrote the client, a little program called XCoffee that put a live picture of the pot in a window on your desktop. Refill decisions could now be made without leaving your chair.
The image was deliberately tiny: roughly 128x128 pixels, grayscale. Nobody needed high definition to tell a full pot from an empty one, and the lab’s network and hardware of the early 1990s would not have thanked them for anything larger. There was no streaming as we understand it now, no video, no audio. The client simply asked the server for a fresh still every so often and redrew the window. By modern standards it barely qualifies as live, but the effect, glancing at a window and seeing the real state of a room elsewhere, was exactly the one that webcams would later sell to millions.
Was it really the first webcam?
It depends on what you mean by “webcam.” The coffee pot system started in 1991 as a local network feed, predating the web itself. Tim Berners-Lee’s first website only went live in late 1991, the same year the pot got its camera. If you want the full story of that, see /archive/what-was-the-first-website/.
The camera became a webcam in November 1993, when Daniel Gordon and Martyn Johnson connected the feed to the lab’s web server so anyone with a browser could watch the pot fill and empty. That makes it the first camera streamed to the World Wide Web, and the title has stuck. Plenty of “firsts” from this era are murky, but this one is unusually well documented, with the original engineers still around to tell it.
The web of 1993 was a thin place. Mosaic, the browser that made images mainstream, had barely launched. A grainy live picture of a kitchen appliance in England was, briefly, one of the more interesting things on the entire network.
Why did people actually watch it?
Inside Cambridge, the answer was practical: don’t waste a trip. Outside Cambridge, the answer was pure novelty. Watching a coffee pot 5,000 miles away refill in near-real time was a small miracle in 1993, the same impulse that later made people gawk at the first photo on the internet or the first webcam-adjacent oddities that followed.
The pot turned into a minor pilgrimage site. It racked up an estimated couple of million hits over its life, which for the era was an enormous number. People emailed the lab. They reported when the pot looked empty. They wrote in to ask whether the coffee was any good, which the camera could not answer. A piece of plumbing furniture had become an international celebrity, and it never did anything but sit there and occasionally hold coffee.
The appeal was hard to articulate and impossible to deny. There was something hypnotic about a feed that promised nothing and delivered exactly that. You watched because it was real, because it was now, and because someone, somewhere, had decided the most ordinary thing in the building deserved an audience. That instinct, find the dull thing and broadcast it, would define an entire strand of internet culture.
How was it built? A quick timeline
| Date | Event |
|---|---|
| 1991 | Camera first aimed at the pot, fed over the local network via XCoffee |
| Nov 1993 | Feed connected to the web server, becoming a true webcam |
| ~1993-2001 | Watched by an estimated millions of viewers worldwide |
| Aug 2001 | The lab moves buildings; the camera is switched off for good |
| Aug 2001 | The original pot auctioned on eBay |
How did the coffee pot webcam end?
In August 2001, the Computer Laboratory moved to a new building across town, and the Trojan Room ceased to exist. The webcam was switched off on 22 August 2001. The final frames, showing a hand reaching in to turn the camera off, were watched live by a crowd of online fans saying goodbye to a percolator.
Then came the auction. The original coffee machine was put up on eBay, and the press treated it like a relic. It sold for around 3,350 pounds to Spiegel Online, the German news site, which had the (rather worn) machine refurbished and kept it as a piece of internet history. A kitchen appliance had become a museum piece, which is exactly the sort of thing the early web did to ordinary objects.
What did the coffee pot pioneer?
Almost everything about always-on visual streaming traces back, conceptually, to that pot. The idea that a camera could sit somewhere boring and broadcast continuously to anyone, that the liveness was the point, ran straight through the webcam fad of the late 1990s, the lifecasting experiments of the 2000s, and eventually Twitch, security cams you check from your phone, and every “live view” feed you have ever idly stared at.
It also belongs to a specific genre of early-web invention: the useful hack that escaped its cage. Like the first banner ad or the first YouTube video, it was modest, slightly silly, and far more influential than its creators intended. The web has always rewarded people who build small things and ship them, which is the same low-stakes, high-curiosity energy behind our own clicker game about building the internet one click at a time.
The coffee pot was never meant to matter. It mattered because it was first, because it was honest about being pointless, and because watching something happen far away, right now, turned out to be one of the web’s most durable pleasures.
Frequently Asked Questions
Where is the Trojan Room coffee pot now?
After the 2001 eBay auction, the original machine was bought by the German news site Spiegel Online for roughly 3,350 pounds. It was refurbished and kept as a piece of internet history rather than returned to active coffee duty.
Who invented the coffee pot webcam?
Quentin Stafford-Fraser and Paul Jardetzky built the original 1991 system at the University of Cambridge Computer Laboratory. Daniel Gordon and Martyn Johnson later connected the feed to the web in 1993, making it a true webcam.
What resolution was the first webcam?
The image was tiny by any standard: roughly 128x128 pixels in grayscale, updated a few times per minute. That was plenty to tell whether the pot was full or empty, which was the entire point.
Why was it called the Trojan Room?
The Trojan Room was simply the name of the room in the Cambridge Computer Laboratory where the coffee machine lived. The webcam took its name from its location, not from anything to do with the Trojan horse or computer trojans.
When was the coffee pot webcam turned off?
It was switched off on 22 August 2001, when the Computer Laboratory relocated to a new building. The final moments were watched live by online fans, and the machine was then sold on eBay.