When Was Food Canning Invented?
When food canning was invented in 1809, it came from a practical military problem, not a scientific discovery. Nicolas Appert, a French confectioner, received a 12,000-franc government prize that year for his method of packing food into sealed glass jars and heating them in boiling water. Peter Durand patented the tin canister in Britain one year later. The commercial canning factory followed in 1813, feeding British troops with the world’s first mass-produced shelf-stable food.
Why Did Governments Offer a Prize for Food Preservation?
The prize came from military necessity, not scientific curiosity. In 1795, France’s Directory government announced a 12,000-franc award for whoever could reliably preserve food for troops on campaign. Napoleon’s armies covered enormous distances, and their food supply was a consistent tactical weakness. Salt-cured meat and hardtack traveled reasonably well but offered poor nutrition and spoiled under wet conditions. Fresh provisions rotted within days.
Appert, working in Paris, had been experimenting with preservation for years before the prize was even announced. His background was in confectionery and brewing, where controlling fermentation was familiar territory. He packed food into wide-mouthed glass bottles, sealed them tightly with cork and wire, then submerged them in boiling water for several hours. The contents kept for months without spoiling.
He submitted his method for government evaluation in 1809 and won. The review committee noted that he had successfully preserved beef, vegetables, and fruit with no detectable spoilage after extended storage. He used his winnings partly to set up a small commercial operation in Massy, near Paris, reportedly the world’s first cannery, though it worked entirely in glass rather than metal.
In 1810 Appert published the full procedure in “L’Art de Conserver,” translated into English that same year as “The Art of Preserving All Animal and Vegetable Substances for Several Years.” That text remained the foundational reference for food preservation until USDA research produced tested processing times in the early 20th century.
Who Patented the Tin Can, and When?
The tin canister came the same year Appert published his method. In 1810, British merchant Peter Durand received a patent from King George III for preserving food in “vessels of glass, pottery, tin, or other metals.” Durand himself was not a food producer. He sold the patent almost immediately to Bryan Donkin and John Hall for 1,000 pounds. Donkin and Hall built a factory in Bermondsey, south London, and began supplying the Royal Navy and British Army by 1813.
Early tin cans were not the thin cylinders on modern supermarket shelves. They were iron containers with a tin coating, hand-soldered shut, and thick-walled enough to survive rough handling aboard ships and in supply wagons. A typical can weighed several times more than its modern equivalent.
Opening them required brute force. No purpose-built can opener existed for 48 years after the can was patented. British military instructions from the period reportedly told soldiers to use a bayonet or chisel. Ezra J. Warner of Connecticut patented the first true can opener in the United States in 1858, a curved blade tool that worked by piercing the lid and rotating around the rim. The rotating wheel opener closer to what most people recognize today arrived in 1870.
That 48-year gap is informative. The original market for canned food was institutions with large-scale food logistics: armies, navies, and hospitals. These organizations could manage without a specialized opener. Household adoption had to wait for tools that made opening practical for ordinary people.
Did Anyone Know Why Canning Worked?
For its first 55 years, canning was a technology without a scientific explanation. Appert attributed the success of his method to the exclusion of air. The prevailing theory held that food spoilage was a chemical reaction triggered by oxygen contact. Seal the food away from air, and it would keep. This was a reasonable inference but an incomplete one.
Louis Pasteur’s experiments in the 1860s showed that microorganisms, not air exposure, cause fermentation and spoilage. His 1864 demonstrations explained what Appert’s boiling water had actually been doing: killing the bacteria and molds that would otherwise decompose the food. The sealed container kept new organisms from entering after heating.
The practical consequence of that 55-year knowledge gap was serious. Low-acid foods, including vegetables, meats, fish, and dried beans, harbor Clostridium botulinum spores that survive boiling water at 212 degrees F (100 C). These spores produce a toxin in anaerobic conditions, which is exactly the environment inside a sealed jar. Only temperatures above 240 degrees F (116 C), achieved with a pressure canner, reliably destroy those spores.
Home canners without this knowledge water-bathed everything. Botulism outbreaks traced to home-canned corn, green beans, and asparagus were documented throughout the 19th and early 20th centuries. The USDA began systematic research into safe canning temperatures in the 1910s and 1920s, and their first tested home-canning recommendations appeared in 1917. Processing times in those guides have been revised repeatedly as laboratory methods improved.
When Did Canning Reach the United States?
Commercial canning reached the United States around 1819. Ezra Daggett and Thomas Kensett began packing salmon, oysters, and lobster in tin in New York that year, targeting the same provisioning market that Donkin and Hall had served in Britain. The industry stayed small for decades, with output measured in the hundreds of thousands of cans per year through the 1850s.
The Civil War (1861 to 1865) changed the scale entirely. Union Army contracts drove US canning output from several million cans annually at the war’s start to over 30 million by its end. Soldiers returned home accustomed to canned tomatoes, condensed milk, and preserved meat. Commercial grocery demand followed their habits, and by the 1880s canned goods were standard pantry items across much of the country.
Home canning developed through a parallel track. John Landis Mason’s 1858 patent for a threaded screw-top glass jar made reliable home canning practical and inexpensive for the first time. The jar created a proper vacuum seal when hot food was packed and the lid cooled. Ball Corporation later standardized the jar design and has published home canning guidance continuously since 1909. The Ball Blue Book remains in print today, though current recipes are validated against USDA tested processing times rather than older informal methods.
Key Dates in the History of Food Canning
| Year | Development |
|---|---|
| 1795 | France offers 12,000-franc prize for a reliable food preservation method |
| 1809 | Nicolas Appert wins the prize; heat-seal method with glass jars confirmed |
| 1810 | Peter Durand patents the tin canister; Appert publishes his full method |
| 1813 | First commercial canning factory opens in London (Donkin and Hall) |
| 1819 | Commercial canning begins in the United States (Daggett and Kensett, New York) |
| 1858 | Mason jar patented; first purpose-built can opener patented (Ezra Warner, US) |
| 1864 | Pasteur explains microbial basis of spoilage; canning finally has a scientific rationale |
| 1861-1865 | US Civil War drives canning output past 30 million cans per year |
| 1917 | USDA publishes first tested home canning recommendations |
| 1920s-1930s | Pressure canning established as required for low-acid foods |
| 2015 | USDA Complete Guide to Home Canning, current edition, published |
How Has Home Canning Changed Since 1809?
The physical process is recognizable from Appert’s original description: fill a container, apply heat, seal it. What has changed is the precision applied to every variable.
Appert heated his jars in boiling water for hours with no guidance on how long was enough for any given food. Modern USDA-tested recipes specify exact processing times for each food type, jar size, and canning method, based on heat penetration studies that measure how long the slowest-heating point inside the jar takes to reach a safe temperature. That specificity is what separates a tested recipe from guesswork.
The research behind those numbers comes from the National Center for Home Food Preservation (NCHFP), operated jointly by the USDA and the University of Georgia. They test every recipe before publishing a processing time, and they update recommendations when new data indicates a change is warranted. Their complete database is available at nchfp.uga.edu, and the current USDA Complete Guide to Home Canning (2015 edition) is downloadable free from that site. It is the only federally tested standard for home canners in the United States and the right reference to check before processing any specific food.
The Library of Congress has documented Appert’s original contributions in its Everyday Mysteries series, which is a useful starting point for anyone tracing the primary sources behind canning’s invention: loc.gov/everyday-mysteries.
Two centuries of refinement have not changed the underlying logic Appert observed in 1809. Heat destroys the organisms that cause spoilage. A sealed container prevents new organisms from entering after heating. Every glass jar sealed in a modern water-bath canner, and every low-acid vegetable run through a pressure canner, operates on exactly the same principle.
Frequently Asked Questions
Exactly when was food canning invented?
Nicolas Appert received the 12,000-franc French government prize in 1809 for his heat-sealing preservation method, making that year the accepted invention date. Peter Durand patented the tin canister in Britain in 1810. The first commercial canning factory, Donkin and Hall’s operation near London, opened in 1813.
Who invented canning, Appert or Durand?
They solved different problems. Appert invented the process: heat food inside a sealed container. Durand invented a better container: the tin canister, which replaced Appert’s glass jars for large-scale production. Both developments happened in 1809 to 1810. Appert himself never used tin; his operation worked entirely with glass throughout his career.
Why did it take 48 years to invent a can opener?
The original market for canned food was military and maritime institutions, not households. Soldiers and sailors opened cans with whatever was at hand, typically knives or bayonets, with instructions sometimes printed on the label. The can opener became a practical necessity when canned goods moved into ordinary kitchens through the 1840s and 1850s. Warner’s 1858 opener was the first purpose-built tool; the rotating wheel opener most people recognize today came in 1870.
Was early home canning as safe as it is now?
No. Before the USDA’s tested processing times appeared in 1917, home canners followed informal guides with no scientific basis for the specified times. Botulism from home-canned vegetables was a documented problem throughout the late 19th and early 20th centuries. Pressure canning requirements for low-acid foods, the critical safety rule, were established through USDA research in the 1920s. Safe home canning today depends on using tested recipes from current USDA sources, not on Appert’s original method or earlier family traditions predating that research.
Did Nicolas Appert know why his method worked?
No. Appert attributed the success of heat processing to the exclusion of air, which was the best available scientific hypothesis at the time. Louis Pasteur’s 1864 work on microbiology provided the actual explanation: heat destroys the microorganisms responsible for spoilage. Appert died in 1841, twenty-three years before Pasteur’s experiments gave canning a scientific rationale.