Evolution Of The Electric Dishwasher
A dishwasher is a mechanical device for cleaning dishes and eating utensils. Dishwashers can be found in restaurants and private homes. Unlike manual dishwashing, which relies on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, 55 to 75 °C (130 to 170 °F) at the dishes, with lower temperatures used for delicate items. Water and detergent clean the contents inside of the dishwasher. Some dishwashers have different wash and rinse periods within the cycle.
The first reports of a mechanical dishwashing device were in 1850 in the United states by Joel Houghton. This device was made of wood and was cranked by hand while water sprayed onto the dishes. This device was both slow and unpredictable.
Modern dishwashers are inspired from the 1887 invention of Josephine Cochrane who invented a new advanced dishwasher, also hand-powered. Models installed with permanent pluming were available to the public in the 1920s. Electric drying elements were added in 1940.
Dishwashers evolved into standardized size and shape appliances, first integrated with the sink, and then underneath the kitchen countertop.
By the 1970s dishwashers had become common in people's kitchens. By 2005, 60 percent of US homes had dishwashers.
The first reports of a mechanical dishwashing device were in 1850 in the United states by Joel Houghton. This device was made of wood and was cranked by hand while water sprayed onto the dishes. This device was both slow and unpredictable.
Modern dishwashers are inspired from the 1887 invention of Josephine Cochrane who invented a new advanced dishwasher, also hand-powered. Models installed with permanent pluming were available to the public in the 1920s. Electric drying elements were added in 1940.
Dishwashers evolved into standardized size and shape appliances, first integrated with the sink, and then underneath the kitchen countertop.
By the 1970s dishwashers had become common in people's kitchens. By 2005, 60 percent of US homes had dishwashers.