As canned food gained popularity in the late 19th century, so did the necessity for an easy way to access these metallic containers. The can opener key, though quite different from today’s electric openers, was a pivotal invention, transforming how we approached canned goods. Before its introduction, opening cans was a risky and labor-intensive process, often involving sharp knives, chisels, and hammers, leading to potential injuries and food wastage.

Using a can opener key required skill and patience, contrasting sharply with the effortless operation of modern electric openers. It consisted of a sharp blade and a rotating handle. Users would insert the blade into the can’s lid and turn the handle to gradually puncture and slice through the metal. This method, safer and more efficient than previous ones, made canned food more accessible and popular, even in remote areas.