
The word crisp has been in English for centuries. It comes from Old English, it describes something brittle and dry, and it is exactly the right word for a thin fried potato slice. But the full story of why we in Britain call them crisps while Americans call them chips, and where the crisp itself actually came from, is more interesting than most people realise.
Crisps get their name from the Old English word meaning brittle or easily broken. The first recorded recipe for thin fried potato slices is British, from 1817. The snack was commercially launched in the UK in 1920 by Smiths, who called them crisps to distinguish them from chip shop chips. The George Crum story is popular but historically disputed.

Why crisp and not chip?
The language problem chips created
In Britain, chips already meant something: the thick-cut fried potatoes served with fish. When thin fried potato slices started being sold commercially in the early 20th century, calling them chips would have caused immediate confusion. Were you getting a bag of fish-and-chip-shop chips or something else entirely?
The word crisp solved the problem neatly. It described the texture precisely. A crisp is brittle, it snaps when you bite it, it shatters rather than bends. The word had been used in English since at least the 14th century to describe things that were dry and easily broken, and applying it to a thin fried potato slice made obvious sense.
The Old English root
Crisp comes from the Old English word meaning to curl or to become brittle. It was used for centuries to describe things like dry leaves, pastry crusts, and anything that had a brittle, snapping quality. By the time Smiths started selling potato crisps commercially in 1920, the word already carried exactly the right meaning. It was not invented for the snack. It was borrowed from everyday language because it fitted.
America kept chips
In the United States, there was no fish-and-chip tradition creating confusion, so the thin fried potato slice stayed as a chip or potato chip. Americans do have chips in a few other contexts, but the crisp/chip divide between British and American English came down to that one key difference: British English already had chips reserved for something else.
Who actually invented crisps?
The real first recipe
The earliest known recipe for something resembling a modern crisp appears in an English cookbook. William Kitchiner’s The Cook’s Oracle, published in London in 1817, includes a recipe for potatoes fried in thin slices or shavings in lard or dripping. This predates every other claimed origin by decades. The recipe is for a home cooking technique rather than a commercial snack, but the concept of the thin fried potato slice is clearly documented in Britain before anyone else gets the credit.
The George Crum story
The most widely repeated origin story credits George Crum, a chef at Moon’s Lake House in Saratoga Springs, New York, in 1853. According to legend, a customer repeatedly sent back his fried potatoes for being too thick. Crum, frustrated, sliced them as thin as possible and fried them until completely crisp. The customer loved them, and the “Saratoga Chip” was born.
The story is a good one. The problem is that historians have found serious issues with it. Crum himself never claimed to have invented the potato chip. The claim only appeared in newspaper articles after his death. The Vanderbilt angle, widely repeated, has been disproven since Vanderbilt was in Europe at the time. The snack was called “Saratoga Chips” and became popular in the region, but the idea of a thin fried potato was already circulating in cookbooks on both sides of the Atlantic before 1853. The George Crum story is best understood as folklore rather than documented history.
Frank Smith and commercial crisps in Britain
The person with the clearest claim to bringing crisps to Britain as a mass-market product is Frank Smith. In 1920, Smith set up what became the Smiths Potato Crisps Company in Cricklewood, London, converting garages into a factory and selling plain fried potato slices in greaseproof paper bags. His key innovation was including a small blue twist of salt in each bag, which customers could sprinkle on themselves. By 1920 he had 12 employees and was producing half a million packets a week. By 1934, Smiths accounted for 95% of all crisps sold in Britain.

When did crisps get flavours?
Plain and salted crisps dominated British snacking until the 1950s. The first flavoured crisp was created in 1954 by Joe Murphy of Tayto, an Irish crisp company. Murphy and his employee Seamus Burke developed the technology to add seasoning during manufacturing rather than as a separate sachet. The first flavour was cheese and onion. Walkers in Leicester produced cheese and onion the same year. Golden Wonder followed.
Smiths countered with salt and vinegar, which was tested by their north-east subsidiary Tudor and launched nationally in 1967, kicking off what became a two-decade flavour war between the major brands. Those two decisions, cheese and onion in 1954 and salt and vinegar in 1967, shaped the British crisp market in ways that are still visible today. They remain the two most popular flavours in the country. The UK’s favourite crisp flavours post has the full data if you want to see how the rankings sit now.
Crisps vs chips around the world
Britain and Ireland say crisps. The United States, Canada, and Australia say chips. Most of continental Europe uses local variations of “chips” or borrows from English. In Ireland, the word Tayto has become so synonymous with crisps that people use it as a generic term for any crisp, regardless of brand.
The British use of crisp has spread to some other countries through cultural influence, but the chip-crisp divide remains one of the most reliable markers of British versus American English. If you want to sound British: it is a crisp, never a chip, and certainly never a potato chip. Browse the full range at One Pound Crisps and you will not find a chip in sight.
Why are crisps called crisps in the UK?
The word crisp comes from Old English meaning brittle or easily broken, which accurately describes the texture of a thin fried potato slice. In Britain, the word chip was already taken by fish-and-chip-shop chips, so crisps needed a different name to avoid confusion when they went on sale commercially in 1920.
Who invented crisps?
The earliest known recipe for thin fried potato slices is in a British cookbook from 1817. The popular story credits American chef George Crum in 1853, but historians have found this to be largely folklore. Frank Smith launched commercial crisps in Britain in 1920, which is the clearest origin point for the modern packaged crisp.
When were crisps invented?
The first documented recipe for something resembling a crisp appears in William Kitchiner’s The Cook’s Oracle, published in London in 1817. Commercial production in Britain began in 1920 when Smiths started selling them in greaseproof bags with a twist of salt. Flavoured crisps arrived in 1954 when Tayto in Ireland created the first cheese and onion variety.
Why do Americans call them chips and not crisps?
In the United States there was no equivalent to British chip-shop chips to cause confusion, so the thin fried potato slice simply kept the name chip or potato chip. Britain needed a different word because chips already referred to thick-cut fried potatoes served with fish.
When did flavoured crisps start?
The first flavoured crisp was cheese and onion, created in 1954 by Joe Murphy of Tayto in Ireland. Walkers produced cheese and onion the same year. Salt and vinegar followed in 1967, launched nationally by Smiths after being tested by their Tudor subsidiary. These two flavours remain the most popular in Britain today.
What does crisp mean as a word?
Crisp comes from Old English meaning brittle, dry, or easily broken. It has been used in English since at least the 14th century to describe things with a snapping, brittle quality. Applying it to a thin fried potato slice was a natural fit, and it became the standard British term for the snack when commercial production began in 1920.