By Mary Davis
If preserving food in metal cans was invented around 1810, why did it take fifty years to invent a practical way to open them?
In 1795, Napoleon Bonaparte offered prize money to anyone who could come up with a way to preserve food to withstand the long journey to his troops in the field. In France, it was common to offer money for scientific advancements. Nicholas Appert earned that money in the early 1800s with a glass jar and lid invention. Though Appert’s method wasn’t a can, it did lead the way for foods to be preserved in cans.
Enter British merchant Peter Durand who developed the can, a.k.a. “tin canister”, in 1810 for the British Royal Navy. These cans could be pumped out at a whopping six cans an hour. This was a very niche market. By the 1840’s, production skyrocketed to sixty cans an hour, and they breached the general market.
These early cans were made out of iron, wrought iron—as in let’s build a fence. They were lined with tin and 3/16 of an inch thick—that’s just shy of a 1/4 inch. An empty can weighed over a POUND. Since the inventor hadn't seen fit to create a can opener, getting the food out was a challenge. However, the manufacturer’s recommendation for opening these tanks was to use a chisel and hammer. Yup, you read that right. Another method for getting to the food inside was to use “whatever you could find around the house.” One source said, there was a rumor that the original purpose of a bayonet on the barrel of a gun was to open cans on the battlefield. Apparently, a multifunctional tool.
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| 1856 |
By the 1850s, cans slimmed down and lost weight with the use of steel. This made it possible for American Ezra J. Warner to invent the first can opener on January 5, 1858. It was a blade that one used to basically saw around the top of the can, which left a jagged edge. They weren’t very popular, and at the grocery store, a clerk could open the can for the customer before it was taken home. Wouldn’t that spill? These first openers were essentially modified knives.
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| Warner Opener |
Roberts Yeates designed a lever-type can opener in 1866.
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| Yeates Opener |
J. Osterhoudt patented the turn-key opener also in 1866.
The first rotating cutting wheel variety came about in 1870 by William Lyman of Connecticut. These were hard for the average person to use.
More customer friendly designs came out in the 1920s.
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| 1920 Star Can Opener |
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| 1925 Double-Wheel Design |
In 1900, the church key can opener was patented in Canada.
During WWII, the compact and robust P-38 and P-51 can openers were created for soldiers. Many of the troops put them on the chain with their dog tags. The 38 and 51 indicated the length in millimeters. The P-51 was easier to use because of the added length. I remember my dad having one of these and proudly showing me how it worked. I was less than impressed.
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| The P-51 & P-38 Openers respectively |
Many improvements have been made to the can opener in the succeeding decades, including electric ones. Now a days, we hardly need a can opener with the pop top cans. But what I want to know is, given that we had pull-tab pop cans since 1962, why did it take so long for that to transfer to food cans?
THE QUILTING CIRCLE SERIES Box Set
Historical Romance Series
By Mary Davis
THE WIDOW’S PLIGHT (Book1) – Will a secret clouding a single mother’s past cost Lily her loved ones?
THE DAUGHTER’S PREDICAMENT (Book2) *SELAH & WRMA Finalist* – As Isabelle’s romance prospects turn in her favor, a family scandal derails her dreams.
THE DAMSEL’S INTENT (Book3) *SELAH Winner* – Nicole heads down the mountain to fetch herself a husband. Can she learn to be enough of a lady to snag the handsome rancher?
THE DÉBUTANTE’S SECRET (Book4) – Complications arise when a fancy French lady steps off the train and into Deputy Montana’s arms.
Mary lives in Colorado with Carolina Dog named Shelby. She has three adult children and three incredibly adorable grandchildren. Find her online at: Books2Read Newsletter Blog FB FB Readers Group Amazon GoodReads BookBub
Resources
Extraordinary Origins of Everyday Things, Charles Panati, p115-116
https://en.wikipedia.org/wiki/Can_opener
https://artsandculture.google.com/story/the-history-of-the-can-opener/EAUxTv3nPqXlLQ?hl=en



















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