(Roughly) Daily

Posts Tagged ‘canning

“Invention, my dear friends, is 93% perspiration, 6% electricity, 4% evaporation, and 2% butterscotch ripple”*…

Bryan Donkin

Jason Toon on a man whose applied creativity birthed not one, but two major industries…

Global canned food sales are now more than $210 billion annually. The average American eats about 200 pounds of canned food every year. Meanwhile the worldwide paper industry has seen steep falls in the production of newsprint, printing paper, and writing paper since 2010, but the rise in paper and cardboard packaging has more than made up for it. The paper industry is bigger than ever, with revenue of $485 billion in 2025.

For better or worse, our world would simply not look the same today without these two industries. And one person was the key figure in starting both of them. Bryan Donkin can legitimately claim to be the “father” of the canned-food industry and the paper industry as we know them. So who was he, besides one of the very few guys named Bryan in the 18th century?

Born in northeastern England in 1768, Bryan Donkin went into the same business as his father: real estate. But it didn’t speak to him. So in 1792, at the rather ripe age of 24, he became an apprentice to John Hall at Dartford Iron Works to pursue his true calling as an engineer.

At the time, all paper was made by hand, more or less the same way it had been done since the Middle Ages. Cotton and linen rags were soaked in water and beaten into a pulp. A shallow, rectangular mold with a screen bottom would be dipped into the liquid slurry and shaken. A thin layer of the macerated fibers would settle on the screen; when dry, you’d have yourself a single sheet of paper.

Donkin started his post-apprenticeship career making these molds. But around 1801, he got connected to the Fourdrinier brothers, who produced stationery in London. They’d made a deal with a French inventor, Louis-Nicolas Robert, to bring a new paper-making machine to Britain. At the time, between the post-revolutionary turmoil in France and England’s more advanced industrial base, the latter seemed to hold more lucrative prospects for the new invention.

Unlike the laborious single-sheet, mold-based method, this new “Fourdrinier machine” used a cylinder to continuously produce rolls of paper. A mechanism called the “shake” agitated the conveyor belt at a high speed, to spread the wet pulp fibers in an even layer. Unfortunately, this rapid movement put a lot of strain on the mostly wooden machine. One of Donkin’s improvements was to use metal parts instead, for improved stability and precision.

Another refinement of his was adjusting the rollers that squeezed the water out of the paper, to maximize contact between them and the paper, to dry the paper more quickly and thoroughly. This and other improvements turned the Fourdrinier machine from an interesting prototype to a viable technical advancement.

It quickly became the industry standard, and remains so over 200 years later. The publishing boom of the late 19th and early 20th century wouldn’t have been possible without it. Those big machines you see today producing rolls of paper are most likely Fourdrinier machines. Donkin also made some key advancements in printing technology, so the Pulitzers and Murdochs of the world owe him double gratitude.

His fortune secured, now the head of a company bearing his name that still exists (these days they make gas valves), Donkin’s restless mind turned to another puzzle: the preservation of food. Like too many technological quests, this one was spurred by military needs. Best frenemies England and France were both spreading their empires around the planet, frequently clashing, and looking for ways to keep their troops fed. In such wide-ranging conflicts as the Seven Years’ War (1756-1763), far more sailors died of malnutrition than in combat.

It seems yet another French inventor had visions of pounds sterling dancing in his eyes. Philippe de Girard had come up with a method of preserving food by putting in inside a sealed tin container, then boiling the container in water to sterilize it. Or maybe he swiped the method from another French inventor, Nicolas Appert [see here]. Or maybe they were in cahoots. What we do know is that in 1810, de Girard went to London and engaged a merchant named Peter Durand to be his frontman for getting a British patent, which de Girard would not have been eligible for since Britain and France were at war.

Durand was duly awarded the patent in his name. Ever since, he’s been often called the inventor of the tin can, despite having nothing to do with inventing it, and doing nothing with it except selling the patent for £1,000 in 1812. The buyer? Bryan Donkin’s old apprenticeship master, John Hall.

Now on equal terms as budding titans of industry, Hall put up the money and Donkin provided the brains along with a third partner, John Gamble, to bring tin canning to an industrial scale. Again, it took a couple of years, but Donkin and Gamble steadily refined the process. One of their major innovations was to use iron coated in a thin layer of tin, combining the strength of the former with the non-reactive properties of the latter for an imperturbable can that could survive the longest, roughest ocean voyages.

For the second time, a French invention plus Donkin’s enhancements equaled le jackpot. After getting the likes of Queen Charlotte and the Duke of Wellington hooked with some free samples of canned beef, the firm of Donkin, Hall and Gamble received an order for 156 pounds of canned food from the Admiralty in 1813. That grew to 2,939 pounds the following year, increasing annually to 9,000 pounds by 1821.

Having bested the canning challenge, Donkin again wandered off in search of other worlds to conquer: helping Charles Babbage with the “difference engine” that would eventually become the computer, consulting on bridge and canal projects, inventing the first metal pen and a screw-cutting machine, being a founding member of both the Institution of Civil Engineers and the Royal Astronomical Society.

He died in 1855, an esteemed eminence in Victorian scientific and engineering circles. Today Bryan Donkin’s impact is out of all proportion to his memory. On a visit to his grave in London, the BBC found, [there was] no mention of his achievements. Cemetery staff didn’t know who he was.

I can sense the question from some quarters of the audience: are Bryan Donkin’s achievements worth celebrating? Not only did canned food help enable imperial conquest and war, it also led eventually to the mass industrialization of food production, with its attendant crises of public health and monocultural farming, and our psychological distance from our food supply. And one look at any municipal dump will show you how much paper and cardboard waste still goes into landfill, even in a supposedly “paperless world”.

Those points are well taken. But it’s easier to dismiss these advancements when you live in a world that’s always known them. Over the last century or two, large-scale paper production enabled the rise of mass literacy, from only 10% of the world’s population being literate in 1820 to 90% today.

And it’s not just British seamen who eat better because of canned food. A 2011-2013 National Institutes of Health study found that people who eat six or more canned items a week “consume more nutrient-dense food groups such as fruits, vegetables, dairy products, and protein-rich foods, and also have higher intakes of 17 essential nutrients” including potassium, calcium, and fiber. Canned food has helped overcome the tyrannies of distance and time to get more nutrition to more people.

From the perspective of people in 1810, both food canning and mass paper production were immense steps forward. We can’t lay our subsequent inability to maintain some equilibrium at their feet. It’s true that Bryan Donkin didn’t invent the machines he perfected. Both industries probably would have happened, in some form, eventually, without him. But in being the first to perfect them for large-scale use, and granting all the downsides they’ve brought along with them, he hastened the coming of a less hungry, more educated world. Not bad for a guy named Bryan…

How one genius fathered both the canning and paper industries: “The Lives of Bryan,” from @jasontoon.bsky.social.

* Willy Wonka (in Roald Dahl’s Charlie and the Chocolate Factory)

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As we devise, we might send carefully-calculated birthday greetings to Dan Bricklin; he was born on this date in 1951. An engineer, he was the co-creator, with Bob Frankston, of VisiCalc, the first spreadsheet program. Known as “the father of the Spreadsheet,” he was awarded the Grace Murray Hopper Award in 1981 for VisiCalc and was one of six people spotlighted when “the Computer” was named “Machine of the Year” by Time magazine in 1982.

Neither Bricklin nor Frankston reaped huge financial profits from their spreadsheet program, though it sold over a half-million copies by 1983. At the time, copyright protection was not generally sought for software; their company was subsequently acquired by Lotus 1-2-3, which became the new spreadsheet standard (until, of course, Excel).

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Written by (Roughly) Daily

July 16, 2026 at 1:00 am

“You don’t win friends with salad”*…

The best meal I had all pandemic cost $1.14 and took about 90 seconds to make. It was a Margherita pizza inhaled in the car on a desolate day in late April. I know the precise cost because my husband is the chef who made it: 61 cents for a few slices of fresh buffalo mozzarella, 24 cents for the San Marzano tomatoes and salt, a quarter for enough basil leaves to supply the rest of the menu’s needs for free, and just 11 cents for the dough, made from a mix of top-shelf imported Italian flours. In normal times, his restaurant sold a Margherita for $20, but he could get away with selling it for $10 and still reach 10% food cost.

We are a nation in the throes of an unprecedented eight-month pizza binge that shows no signs of abating. Multiple pizzerias in Los Angeles reported a 250% rise in sales on Election Day, and on Thursday, Papa John’s reported quarterly same-store sales growth of 23.8%. For months now, the underlying forces for the sustained pizza craze have been as hotly debated within the restaurant industry as the election results have been parsed by professional pollsters. Stress eating is a major cause; quarantine-induced failure of imagination and the return of three major-league sports within weeks of one another over the summer certainly didn’t hurt.

But the actual reason that doesn’t get nearly enough notice is that pizza is one of the few genres of food that is actually more profitable than — and almost as addictive as — booze. Fries and fried chicken — not wings, but tenders and drumsticks — are the only other foods that come close. If that reminds you at all of the suggestions that await you on Grubhub and Uber Eats, well, that’s what’s left of the menu when restaurants lose their alcohol sales and are forced to fork over a third of their gross revenues to delivery app commissions. There are not a lot of foods where taste collides so perfectly with profit: Pizza stands alone…

But times are nothing if not desperate, and the financial case for making a pivot to pizza is anything but ambiguous. Tens of thousands of independent restaurants have closed permanently since March, but independent pizzerias listed on the delivery app Slice have seen sales grow 60%. The chain Marco’s Pizza, which just opened its 1,000th location, in Kissimmee, Florida, has seen sales surge roughly 50% every week since mid-April, according to the consumer data analytics firm Sense360. The pandemic has even breathed new life into the forgotten Pizza Hut chain, which reported a 9% rise in U.S. same-store sales last quarter despite the July bankruptcy of its debt-saddled biggest franchisee, NPC International — which said in a filing that its Pizza Hut division’s 2020 earnings (before interest, taxes, depreciation, and amortization) had exceeded its internal forecasts by a factor of eight. And mediocre pizza behemoth Domino’s, which was starting from a much higher base after reporting 38 consecutive quarters of same-store sales growth, reported a 16% uptick in same-store sales in its second quarter.

The losing side of this stark new restaurant reality is a virtually endless list, but the unequivocal biggest loser has been the so-called $15 salad genre embodied by the fast-food cum tech unicorn Sweetgreen, which recently announced it would be laying off 20% of its corporate staff in its second round of post-outbreak job cuts. Hard numbers on this mostly privately held category, which includes Chopt Creative Salads, Just Salad, Fresh & Co, and True Food Kitchen — all of which have at one point been hailed as the “next Sweetgreen” — were easier to come by in more prosperous times, but the few out there are ugly. Sweetgreen sales fell about 60% during the eight weeks after the first shutdowns, according to Sense360, and the one publicly traded chain in the salad business, Toronto’s Freshii, reported a 51.4% plunge in its second-quarter sales…

Learn how pizza won the pandemic—and Sweetgreen got left behind: “The Death of the $15 Salad.”

* Homer Simpson

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As we savor a slice, we might send well-preserved birthday greetings to the man who was ultimately responsible for that getting that especially- delicious tomato sauce to your pizzeria: Nicolas Appert; he was born on this date in 1749.  A confectioner and inventor, he is known as “the father of canning.”

In 1795, Napoleon, who famously understood that an army travels on its stomach, had offered a prize of 12,000 francs for a method of preserving food and transporting it to its armies.  Appert, who worked 14 years to perfect a method of storing food in sterilized glass containers, won the award in 1810.

Interestingly, that same year (1810), Appert’s friend and agent, Peter Durand, took the invention to the other side.  He switched the medium from glass to metal and presented it to Napoleon’s enemies, the British– scoring  a patent (No. 3372) from King George for the preservation of food in metal (and glass and pottery) containers… the tin can.

One of Appert’s/Durand’s first cans

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Written by (Roughly) Daily

November 17, 2020 at 1:01 am

“First we eat, then we do everything else”*…

 

food flow

How food flows between counties in the U.S.: each line represents the transportation of all food commodities, along transit routes, like roads or railways.

 

My team at the University of Illinois just developed the first high-resolution map of the U.S. food supply chain.

Our map is a comprehensive snapshot of all food flows between counties in the U.S. – grains, fruits and vegetables, animal feed, and processed food items.

To build the map, we brought together information from eight databases, including the Freight Analysis Framework from Oak Ridge National Laboratory, which tracks where items are shipped around the country, and Port Trade data from the U.S. Census Bureau, which shows the international ports through which goods are traded…

Food counties

These nine counties — mostly in California — are most central to the overall structure of the food supply network. A disruption to any of these counties may have ripple effects for the food supply chain of the entire country.

 

Megan Konar, one of the principal investigators on the study, explains in fascinating detail how food gets to your home… and lists some of the bottlenecks and vulnerabilities to which we’d be wise to pay attention.  Read the study in full here.

* M. F. K. Fisher

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As we dig in, we might send well-preserved birthday greetings to Nicolas Appert; he was born on this date in 1749.  A confectioner and inventor, he is known as “the father of canning.”

In 1795, Napoleon, who famously understood that an army travels on its stomach, had offered a prize of 12,000 francs for a method of preserving food and transporting it to its armies.  Appert, who worked 14 years to perfect a method of storing food in sterilized glass containers, won the award in 1810.

Interestingly, that same year (1810), Appert’s friend and agent, Peter Durand, took the invention to the other side.  He switched the medium from glass to metal and presented it to Napoleon’s enemies, the British– scoring  a patent (No. 3372) from King George for the preservation of food in metal (and glass and pottery) containers… the tin can.

One of Appert’s/Durand’s first cans

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Written by (Roughly) Daily

November 17, 2019 at 1:01 am

The nose knows?…

Researchers at the Weizmann Institute of Science have discovered “olfactory white,” the nasal equivalent of white noise, Live Science reports:

Almost any given smell in the real world comes from a mixture of compounds. Humans are good at telling these mixtures apart (it’s hard to mix up the smell of coffee with the smell of roses, for example), but we’re bad at picking individual components out of those mixtures…

Mixing multiple wavelegths that span the human visual range equally makes white light; mixing multiple frequencies that span the range of human hearing equally makes the whooshing hum of white noise. Neurobiologist Noam Sobel from the Weizmann Institute of Science in Israel and his colleagues wanted to find out whether a similar phenomenon happens with smelling…

Spoiler alert:  it does.  Find out how– and learn more about the most mysterious of our senses at Live Science.  (And download the paper from the journal Proceedings of the National Academy of Sciences.)

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As we reach for our hankies, we might recall that it was on this date in 1858 that Philadelphia tinsmith John Landis Mason received the patent for Mason Jars.  With it’s threaded mouth, metal lid, rubber gasket ring– and the hermetic seal that they can form– the Mason Jar quickly became a staple for food preservation (usually, and ironically, called “canning”).  While they are still used to that end, they have more lately flourished as collectables.

A Mason Jar in use

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Written by (Roughly) Daily

December 1, 2012 at 1:01 am