The dishwasher was invented in the 19th century, but its widespread adoption didn't occur until the second half of the following century, driven by the increasing number of women entering the workforce and new attitudes that demanded easier housework. Thus, technical development followed social need, in a product whose evolution wasn't initially spurred by demand from the upper classes, for whom it wasn't a status symbol.
The first dishwasher on record was patented in the United States by Joel Houghton in 1850. Manually operated—a wooden machine that splashed water onto the dishes—it was unsuccessful. However, it indicated that in the early days of mass society, there was an area of domestic chores that could be mechanized.
From hotels to homes
The first modern dishwasher was created by Josephine Cochrane in 1886. It was thus conceived by a woman—an exceptional figure in the technological advancements of the time—which is often attributed to women's sensitivity regarding household chores. Cochrane was the granddaughter of John Fitch, the inventor of the steamboat. According to the most widespread account, she became interested in this innovation when the household staff broke some 17th-century Chinese vases. This was the starting point for her initiative to create a mechanical washing machine.
This dishwasher—with racks for plates, saucers, and cups, pressurized hot water, and a motor that powered it—did not become widespread in the domestic market. It was an expensive machine, but wealthy families understood that dishwashing was a domestic service responsibility. The appliance, however, was a success at the 1893 Chicago World's Fair. It proved commercially profitable, as it was sold for use in hotels, a success that led to subsequent improvements.
From 1910 onwards, there were numerous reports of various prototypes in Europe and America incorporating new technical features, such as diesel or electric motors. For the time being, dishwashers remained restricted to hotels and restaurants due to their bulky size, high price, and the need to supply homes with a larger water flow than was typical.
Furthermore, for the upper classes, domestic service, not washing utensils, however modern, was a status symbol. In the late 1920s, lead pipes and the first electrical components allowed for wider distribution, but social demand was still limited. Handwashing was understood to be part of a woman's daily household chores.
Circumstances changed after World War II. In the late 1940s, dishwashers became smaller. The following decade saw the introduction of specialized detergents, and the 1960s brought the automatic dishwasher to market. Gradually, it became a staple in middle-class households. It had become an essential appliance that made housework easier.
The introduction of microprocessors (1978) further boosted their widespread adoption. By the 1980s, they had become commonplace consumer goods in developed countries. The standardization of these devices paralleled their increasing technical sophistication, which offered varying levels of performance.
Source: Muy Interesante Magazine
