Canning is a method of preserving food from spoilage by storing it in containers that are hermetically sealed and then sterilized by heat. The process was invented in 1809 by Nicolas Appert of France, who used glass bottles.
In the 19th century tin-coated iron cans with soldered tops, bottoms, and seams were used, but in the early 20th century these were replaced by tin-plated steel containers with interlocking seams and polymer seals.
Vintage Canned Meat Advertisements.
(thanks Nicholas)
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