Editing Dishwasher (section)

===Features===
[[File:Geschirrspuelertv.ogg|thumb|upright|Clear model of a running dishwasher]]

Mid-range to higher-end North American dishwashers often come with hard food disposal units, which behave like miniature [[garbage disposal unit|garbage (waste) disposal units]] that eliminate large pieces of [[food waste]] from the wash water. One manufacturer that is known for omitting hard food disposals is [[Robert Bosch GmbH|Bosch]], a German brand; however, Bosch does so in order to reduce noise. If the larger items of food waste are removed before placing in the dishwasher, pre-rinsing is not necessary even without integrated waste disposal units.{{Cn|date=March 2025}}

Many new dishwashers feature [[microprocessor]]-controlled, [[sensor]]-assisted wash cycles that adjust the wash duration to the number of dirty dishes (sensed by changes in water [[temperature]]) or the amount of dirt in the rinse water (sensed chemically or optically). This can save water and energy if the user runs a partial load. In such dishwashers the [[electromechanical]] [[rotary switch]] often used to control the washing cycle is replaced by a microprocessor, but most sensors and [[valve]]s are still required. However, pressure switches (some dishwashers use a pressure switch and flow meter) are not required in most microprocessor controlled dishwashers as they use the motor and sometimes a rotational position sensor to sense the resistance of water; when it senses there is no [[cavitation]] it knows it has the optimal amount of water. A [[bimetallic strip|bimetal switch]] or [[wax motor]] opens the detergent door during the wash cycle.{{Cn|date=March 2025}}

Some dishwashers include a child-lockout feature to prevent accidental starting or stopping of the wash cycle by children. A child lock can sometimes be included to prevent young children from opening the door during a wash cycle. This prevents accidents with hot water and strong detergents used during the wash cycle.{{Cn|date=March 2025}}