Who invented the dishwasher?


Quick Answer

Joel Houghton received a patent for the first dishwasher, which had a wooden hand-operated wheel designed to splash water to clean dishes; however, Josephine Cochrane invented the first workable dishwashing machine, which was mechanical and hand-operated. Introduced at the 1893 World’s Fair, dishwashers did not become popular until the 1950s.

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Full Answer

The company founded by Cochrane later became KitchenAid. William Howard Livens introduced the first modern dishwasher in England in 1924. Its design included wire racks, a rotating sprayer and a front-loading door. Heating elements added to the machines in 1940 dried the contents. Dishwashers initially sold as portable or standalone units.

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