How did electric can openers replace manual can openers in many homes?

The transition from manual to electric can openers was driven by the broader integration of fractional-horsepower electric motors into household kitchen tools. As these motors became more accessible, they were increasingly utilized to automate repetitive or physically demanding culinary tasks, effectively replacing manual versions of various utensils.1

Beyond simply opening cans, these electric models often provided added convenience by incorporating multifunctional features, such as built-in knife and scissor sharpeners. This shift was part of a larger trend in the 20th century where electric power was applied to simplify kitchen chores, similar to how motors were used to automate meat grinders, eggbeaters, and ice cream freezers.1