First Webcam Watched Coffee Pot
In this post
You know this walk
You leave your desk.
You cross the building, down the stairs, along the corridor, pushed by one hopeful thought: coffee.
You open the door. You look at the pot.
Empty.
Not nearly empty. Not one sad cup left. Empty, cold, and somehow personally offensive.
In 1991, the researchers at the University of Cambridge Computer Laboratory knew that walk far too well.
Their department’s coffee machine lived in one room — the Trojan Room — and everyone else worked somewhere else in the building, spread across different floors and labs. The pot belonged to a coffee club, and its members had one shared enemy: the long trip across the building that ended at an empty pot.
It was not just annoying. It was a small daily injustice. Whoever wanted coffee had to gamble their time on a walk, with no way of knowing whether the prize was even there.
So they did what frustrated, clever people have always done.
They cheated.
One pot, one camera, zero wasted trips
Two researchers, Quentin Stafford-Fraser and Paul Jardetzky, pointed a camera at the coffee pot and wired it into the laboratory’s local network. Stafford-Fraser wrote the viewing software, which they called XCoffee. Jardetzky wrote the server program behind it.
The technology was gloriously humble. The camera produced a tiny greyscale picture, just 128 by 128 pixels, fed through a video capture card fitted into an Acorn Archimedes computer. The image on people’s screens refreshed only a few times a minute.
Slow? Terribly.
Good enough? Completely. Coffee does not move fast. A pot fills slowly, and a grainy grey blob sitting in the corner of your screen is perfectly capable of answering the only question that mattered: is it worth the walk?
From that moment, nobody in the lab had to guess. A quick glance before standing up, and you knew. Full pot: go. Empty pot: stay seated, stay calm, let somebody else discover the tragedy in person.
Stafford-Fraser later recalled that the whole system took about a day to build, and that the picture being greyscale was fine — because the coffee was greyscale too.
Personally, that is my favourite detail in the entire history of the internet. The world’s first webcam was not built for fame, money or science. It was built out of pure, honest laziness, and it took a day.
Then somebody plugged it into the web
For two years, the pot was a local treat, visible only inside the laboratory.
Then 1993 arrived, and web browsers learned to display pictures inside pages. Two other computer scientists, Daniel Gordon and Martyn Johnson, saw the obvious opportunity. In November 1993 they connected the coffee camera to the young World Wide Web.
That one decision turned a lab shortcut into a world first.
The humble Trojan Room coffee pot became the first webcam — a live camera that absolutely anybody on the planet could peek at, just by opening a web page.
The whole planet tunes in… to watch coffee
Nothing happened on that feed. That was the charm.
A pot sat there. Sometimes it was full. Sometimes it was empty. Occasionally, if you timed it perfectly, you caught it half full, which passed for high drama.
And people loved it. Millions of visitors arrived to stare at this small grey picture of somebody else’s coffee in Cambridge, England. Newspapers wrote about it. Radio stations talked about it.
Remember what the web looked like in 1993. There was barely anything on it. A person could explore for an afternoon and feel they had seen a fair share of it. Into that tiny, quiet world landed a live picture of a real object in a real room — and it felt like magic with wires showing.
The coffee pot became a landmark of the early web. Not because coffee is thrilling, but because of what the little picture proved: the internet could show you a real place, live, right now, from the other side of the planet.
Checking the pot became a tiny ritual of early internet life — a page people opened the way we now glance at a weather app, partly for the information and partly just because it was there, quietly live, at the far end of a wire.
A coffee machine had become a celebrity. Fame is a strange substance.
Switch-off day
All legends end, and this one ended because of a house move.
In 2001 the Computer Laboratory prepared to leave its old building for a new home, the William Gates Building across the city. There would be no Trojan Room in the new place, and so the camera’s days were numbered.
Word of the ending spread months before the actual day. Fans who had spent years glancing at that pot felt a genuine, slightly ridiculous sadness. The news made the front pages of The Times and The Washington Post, with coverage in The Guardian and Wired too.
Front pages. For a coffee pot switching off.
On 22 August 2001, at 09:54 UTC, the feed went dark.
The final picture the webcam ever took showed three fingers reaching in to switch the server off. Ten years of broadcasting, ended by the most honest final frame imaginable: a hand, turning out the lights.
Sold to the highest bidder
Retirement did not mean the bin.
The last coffee machine to star on the feed — a Krups model, one of several pots that had served over the decade — was put up for auction on eBay. It sold for £3,350.
The buyer? Spiegel Online, the website of the German news magazine Der Spiegel.
Krups, the company that made the machine, kindly refurbished it free of charge, and the famous pot went back to work brewing coffee in Spiegel’s newsroom. Since 2016 it has been on permanent loan to the Heinz Nixdorf MuseumsForum, a computer museum in Paderborn, Germany — where the most watched coffee pot in history now sits quietly in retirement, presumably enjoying people walking up to look at it in person for a change.
A pot that would not stay a joke
The little experiment refused to remain a footnote. The tech world kept saluting it in the oddest ways.
In 1998, an official April Fools’ joke specification described a “Hyper Text Coffee Pot Control Protocol” — a pretend internet standard for controlling coffee pots, written in loving tribute. Years later, the pot even turned up in a BBC Radio 4 drama, The Archers, in 2005.
Historians of technology point to it as one of the earliest experiments in ideas we now use daily without thinking: live-streaming, and ordinary objects reporting their status over a network. Long before anyone said the words “smart home,” a coffee pot in Cambridge was already doing the job — telling the world, honestly and in greyscale, exactly how it was doing.
Questions people ask
Was it really the world’s first webcam? Yes. Cameras had been attached to computers before, but the Trojan Room pot was the first one broadcast on the World Wide Web, which is what makes it the first true webcam.
Was the picture a live video? Not in the modern sense. It was a small still image, 128 by 128 pixels and greyscale, which refreshed a few times a minute — more like a very slow slideshow than a video stream.
Why did they not simply make a bigger pot? Because the problem was never the size of the pot. It was the not knowing. The camera answered the question before the walk, which is all anyone wanted.
How long did the webcam run? The camera started on the lab network in 1991, reached the web in November 1993, and was switched off on 22 August 2001 — almost a decade of coffee-watching in total.
Where is the coffee pot now? On display at the Heinz Nixdorf MuseumsForum in Paderborn, Germany, on permanent loan since 2016.
Then and now
Then: one camera, in one room in Cambridge, sending one tiny grey picture of one coffee pot to a handful of researchers.
Now: cameras are everywhere and on everything. Doorbell cameras watch our doorsteps. Baby monitors watch our children. Livestreams run from volcanoes, oceans, space stations and street corners. Video calls carry faces across the world every second of every day, and there are billions of lenses quietly reporting what they see.
Every single one of them descends from a tired researcher’s refusal to walk down a corridor for nothing.
And the original question never went away, either. It just grew up. Today we check phone screens to see whether a bus is coming, whether a parcel has arrived, whether a shop is still open — the same small hope the Cambridge team had in 1991, dressed in better graphics: tell me before I make the trip.
The first thing the web ever watched was not a celebrity, a concert or a breaking news story. It was a pot of coffee, deciding slowly whether to be full or empty. And honestly? The internet has been at its best, and its most human, ever since.
