
Inventions · 1908 · Dresden
The Raided Notebook
Melitta Bentz and the coffee filter
One station in the Germaneum’s «Inventions» room
A Page Goes Missing
Dresden, 1908. A schoolboy called Willy opens his exercise book and frowns. Something is not right.
The blotting paper is gone.
Every schoolchild of the time knows their blotting paper. It is a soft, absorbent sheet tucked between the pages to soak up wet ink before it smudges, the loyal companion of every fountain pen. Nobody can do without it. It belongs in an exercise book as surely as the margins and the dog-ears. And Willy Bentz’s has vanished.
The culprit is quickly found. She is standing in the kitchen, and she is his own mother. She has not lost the blotting paper, nor mixed it up with anything. She has repurposed it. In front of her stands a brass cup whose bottom she has punched full of holes with a hammer and a nail. Inside it, carefully trimmed to size, lies Willy’s blotting paper. And through the blotting paper, coffee is dripping.
That is how the family tells it, and that is how the company that grew out of that afternoon tells it to this day. Whether it was exactly this exercise book on exactly this day, nobody can say anymore. What is certain is this: a paper made for ink ended up in the coffee. And the world has been drinking differently ever since.
The woman in the kitchen is called Melitta Bentz.
The Land of the Coffee Saxons
To understand why anyone in Dresden, of all places, would put blotting paper in their coffee, it helps to know where this story is set.
Around 1900, Saxony is not just any coffee country. It is the coffee country. The rest of Germany calls its people Kaffeesachsen, coffee Saxons, half in mockery and entirely accurately. They drink it in the morning, in the afternoon and on every occasion in between. They even have their own word for the disappointment of a bad cup: Blümchenkaffee, little-flower coffee. It means coffee so weak that the little flower painted at the bottom of the porcelain cup shows right through it. A people that names its disappointments this precisely takes the matter seriously.
And it is disappointed often. Making coffee back then is a gamble. The usual method goes like this: tip the grounds straight into hot water, wait until the sludge has more or less settled at the bottom of the pot, then pour off very carefully. The result is bitter and murky. The last half-cup is a lost cause anyway. It consists of mud.
Those who want something finer filter through cloth. Through linen towels, or even through old stockings. These never come entirely clean, though, so every new pot tastes faintly of all the ones before it.
On Marschallstraße in Dresden lives a woman who has decided not to put up with this any longer. Melitta Bentz, born Melitta Liebscher, is in her mid-thirties. She is a publisher’s daughter, married to the merchant Hugo Bentz and mother of two sons. She is no engineer and no chemist. A woman of her generation would hardly have been allowed to study anyway. She is a housewife. And she has a grievance.
A specific grievance in the right hands is more dangerous than any research laboratory.
Hammer, Nail, Blotting Paper
What happens next in that kitchen is science at its finest. Just without a laboratory, without money and without permission.
Melitta Bentz works the problem backwards. The grounds should not have to be laboriously poured off afterwards. They should never reach the cup in the first place. So she needs a barrier that lets the coffee through and holds the crumbs back.
She takes a brass cup and punches holes in its base with a hammer and a nail. The holes alone are not enough; the grounds slip straight through. She needs something on top, something with fine pores. She tries whatever the household has to offer. And then her eye falls on her elder son’s exercise books.
Blotting paper. Absorbent, fine-pored, clean. Invented to soak up ink, and therefore exactly right for letting coffee through while holding back the grounds.
She cuts a sheet to size, lays it in the perforated cup, adds the ground coffee and pours hot water over it. Out of the bottom it drips. Clear, free of grounds, free of the taste of old stockings.
This is the birth of filter coffee.
And it brings along something that is easy to overlook. After brewing, the paper is not washed but thrown away, grounds and all. No more cloths to boil, no more stockings to scrub. The washing-up, that eternal enemy of everyday life, loses a major battle that day.
The first market research takes place at the Kaffeekränzchen, the Saxon ladies’ afternoon coffee circle. Melitta Bentz demonstrates her cup to her friends. It must have been quite a scene: a living room full of Dresden ladies drinking a truly clear cup of coffee for the first time in their lives. There are stricter judges than Saxon coffee drinkers. But not many.
Seventy-Two Pfennigs
Now Melitta Bentz does something no housewife in the German Empire was ever expected to do. She registers her invention.
In June 1908 she submits the paperwork to the Imperial Patent Office in Berlin. A few weeks later the protection is granted. It is not a patent but a Gebrauchsmuster, a utility model, known as the little patent: quicker and cheaper to obtain, and shorter-lived in return.
The official entry reads: «Coffee filter with a base curved on the underside and provided with a recess, and with obliquely directed flow-through holes.» No civil servant on earth would have spotted the beginnings of a global company in that sentence. It reads like the specification for a drain cover.
In December of the same year the company is entered in the Dresden commercial register. Its name: M. Bentz. Its premises: one room in the family flat. Its starting capital has been handed down and deserves a moment of reverent silence. It amounts to seventy-two pfennigs.
Hugo Bentz takes care of production, Melitta of sales. In these early years the company is a family business in the most literal sense. Folding, punching and packing happen at the kitchen table, and the name on the company plate is the woman’s.
It works. The following year Melitta and Hugo Bentz set up their stand at the Leipzig Trade Fair and sell more than 1,200 filters. Awards in Dresden soon follow. And in 1914 the company moves out of the flat into a workshop of its own, with fifteen employees and new machines. Demand is growing.
Then comes August 1914.
Cardboard Instead of Coffee
The First World War takes away everything the young company needs to survive.
The coffee first. The British naval blockade cuts Germany off from the bean trade. The country drinks substitutes made of roasted barley, chicory and acorns, and nobody needs a filter for ersatz coffee. Then the paper. It becomes scarce and is rationed. Then the metal for the filter cups. It is needed for the war.
And finally the men. Hugo Bentz is called up. Later, so is Willy, the boy with the raided notebook.
That leaves Melitta Bentz, with the support of her brother Paul. She now runs a company that makes coffee filters, in a country without coffee.
She does what has defined this story from the start. She uses something for a different purpose. Instead of filters, the company now makes cardboard boxes, which everyone needs in wartime. The machines that used to cut paper for coffee now cut cardboard for everything else.
This company began with a sheet of blotting paper that suddenly filtered coffee. In its hardest years it survives because a filter factory suddenly folds boxes. It is the same talent, just running in reverse.
Red and Green
When the war is over, the company is still standing. Hugo and Willy come home, and the filter business starts all over again, amid poverty and inflation.
In 1923 Willy Bentz becomes a partner. The boy whose blotting paper was once stolen now co-owns the company that grew out of the theft. There are worse forms of compensation.
Imitators soon appear, and the remedy is a signature colour scheme. The company chooses red and green. Anyone standing in front of a supermarket shelf today can still check that decision with the naked eye.
In 1929 Dresden becomes too small. The company moves to Minden in Westphalia, where it is still based today. Saxony thus loses its coffee queen to the west. But the story was born on the Elbe, and nobody can take that away.
Three years later Melitta and Hugo Bentz hand the business over to their children. The same year, the filter takes on the shape everybody knows today: the cone, tapered and crimped. A piece of paper that has probably been copied more often than almost any other shape in the world.
Honesty requires this story’s darkest chapter, too. Under the sons, during the Nazi era, the company seeks closeness to the regime. In the Second World War it makes war materials instead of coffee filters and uses forced labour. This time it is a detour nobody wants to tell. But it must not be left out.
And that war brings one last twist. The original documents of the 1908 utility model go up in flames. Today there are billions of Melitta filters in the world. Only the one sheet of paper that made it all official no longer exists. For a company that began with a repurposed sheet of paper, that is an irony almost too neatly composed.
A Monument in the Kitchen Cupboard
Melitta Bentz lives to see her idea succeed. She sees her name on packets in shops far beyond Germany. And she looks after the people who work for her. The company introduces the five-day week early on, three weeks of paid holiday and a Christmas bonus. Later Melitta Bentz sets up a relief fund of her own for the workforce. For a businesswoman of the 1930s, that is remarkable.
In June 1950 she dies in Holzhausen near Minden, aged seventy-seven. She has watched a brass cup full of holes turn into a global company that still bears her first name.
Where can this story be visited? The most honest answer: in the nearest kitchen cupboard. Some inventions need a museum. Others are simply everywhere.
A few years ago the world even discovered the hand filter a second time. In the cafés of Brooklyn, Melbourne and Berlin it is now called the pour-over. It is celebrated with precision scales and thermometers, by young people with carefully groomed beards. What happens there is exactly what Melitta Bentz did in her Dresden kitchen in 1908. Only slower. And more expensive.
The Blotting Paper
Tomorrow morning, millions of people will once again perform the same small ritual. Fold the paper, put it in, add the coffee, pour the water. And then wait while it drips.
Hardly anyone gives it a thought. That is precisely the seal of quality. Only the greatest inventions become so self-evident that they turn invisible.
But at the beginning of all this self-evidence stands a woman in a Dresden kitchen. In front of her, a brass cup full of holes. In her hand, a sheet of paper made for ink. And around her, an era that expected nothing of her except a decent cup of coffee.
She delivered. For everyone.
And if Willy Bentz got into trouble at school because his blotting paper was missing, it is fair to say in hindsight: it was worth it.
Melitta Bentz is one of eight stations in the «Inventions» room: stories of things from Germany that were meant for something else and then went round the world.