The Dinner That Arrived Before Its Opener
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The Dinner That Arrived Before Its Opener
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The first food tins arrived before the familiar can opener. Preserving lunch and getting it out turned out to be two different engineering problems.
For World Food Day, Sam explores the glass jars, patents and practical experiments behind canning—and why the clever part of a can is the process and seal, not just the metal.
Sources:
FAO, World Food Day: https://www.fao.org/world-food-day/en
US National Archives, Tin Cans and Patents: https://www.archives.gov/publications/prologue/2013/fall-winter/tin-cans-and-patents
US National Agricultural Library, Canning: https://www.nal.usda.gov/exhibits/ipd/canning/
Canning timeline: https://www.nal.usda.gov/exhibits/ipd/canning/timeline-table
National Park Service, Why No Cans?: https://www.nps.gov/articles/000/why-no-cans.htm
USDA FSIS, Shelf-Stable Food: https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/shelf-stable-food
Historical explanation, not home-canning instructions. Follow current food labels and tested preservation guidance.