Dishwashers

A dishwasher is a mechanical device for cleaning dishware and cutlery. Unlike manual dishwashing, which relies largely on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, typically between 45 and 75 °C (110 and 170 °F), at the dishes, with lower temperatures used for delicate items. 

A mix of water and dishwasher detergent is pumped to one or more rotating spray arms, which blast the dishes with the cleaning mixture. Once the wash is finished, the water is drained, more hot water is pumped in and a rinse cycle begins. After the rinse cycle finishes and the water is drained, the dishes are dried using one of several drying methods. Typically a rinse aid is used to eliminate water spots for streak-free dishes and glassware resulting from hard water or other reasons.

Users operate dishwashers by scraping food from dirty dishes, loading them into the dishwasher racks, adding dishwasher detergent, turning on the device, then removing the clean dishes.

Dishwasher use starts with installation as an appliance. Most home users fix their dishwashers in one place, such as under a countertop.