How Does a Bosch Dishwasher Work?

Many Bosch dishwashers feature sensors that detect the amount of dishes in the washer, as well as the type of dishes. If the dishwasher is mainly full of pots and pans, for example, the sensors know. Using this information, the temperature and cycling time adjusts to conserve water and energy and maximise cleaning.

On some models, these sensors also determine how much detergent to use as well.

Motor System

Unlike regular dishwashers, Bosch washers have two motors that wash and drain simultaneously. Other brands tend to use one large motor. The two smaller motors make the Bosch dishwasher much quieter than the average machine. The motors pump water into the system, then drain the water when that particular cycle ends.

Water Heater

When the water pumps into the dishwasher, it travels through a heating chamber and small heat coils. This chamber can quickly heat water up to 71.7 degrees C. Other brands typically have a heating element that sits in the bottom of the machine and waits for water to hit it and warm. Bosch's system is much more efficient.

Rinse Sensors

During the dishwasher's cycling, sensors determine how dirty the dishes are and how much more cleaning needs to be done. In fact, the sensors control how hot the water is throughout the cycle. It can vary anywhere from 54.4 to 65.5 degrees C. The sensors work by measuring how clear the wash water is. If the clarity is satisfactory, sometimes the Bosch dishwasher forgoes additional rinse cycles to conserve energy.


Unlike many other dishwasher brands, Bosch does not use a drying element. To conserve energy, the dishwasher uses condensation drying, since Bosch constructs its tub out of stainless steel which is cool to the touch. During the last rinse cycle, the water is very hot. The heat from the water condenses on the naturally cool stainless steel. It then drains out without wasting any energy. Every model of Bosch dishwasher is an EnergyStar appliance. Not only do they save energy, they also save customers money on electricity and water.