As a home appliance expert with years of experience in the industry, I've seen the evolution of dishwasher technology and its impact on efficiency and utility. The duration it takes to wash dishes in a dishwasher can vary greatly depending on several factors such as the model of the dishwasher, the type of cycle selected, the load size, and the level of soil on the dishes.

Newer dishwashers are indeed designed to be more energy and water efficient, but this doesn't always translate to shorter wash times. The counter-intuitive aspect is that while they may consume less energy and water overall, the wash cycles can sometimes be longer due to the need to ensure that all dishes are thoroughly cleaned with the reduced resources.

Typically, a Normal cycle on a dishwasher can range from one to three hours, depending on the model and settings. Some dishwashers offer Quick Wash or Express Wash options that can significantly reduce the time to as little as 30 minutes, but these are usually less thorough and are best suited for lightly soiled dishes.

The load size and soil level also play a crucial role. A full load of heavily soiled dishes will naturally take longer to clean than a half load or lightly soiled dishes. Additionally, some dishwashers have sensors that can detect the soil level and adjust the wash time accordingly.

Moreover, the type of cycle selected can greatly affect the wash time. For instance, a Heavy cycle for pots and pans will naturally take longer than a Light cycle for delicate items. There are also Eco cycles that prioritize energy and water savings over speed, which can result in longer wash times.

It's also worth noting that some dishwashers come with delayed start features, allowing users to start the wash cycle at a later time, which can be beneficial for off-peak electricity usage.

In conclusion, while newer dishwashers may run for longer periods, they are designed to be more efficient in their use of electricity and water. The actual wash time can vary from as short as 30 minutes to over two hours, depending on the cycle selected and the specific conditions of the load.

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It's counter-intuitive. New dishwashers tend to run a lot longer than older machines, yet the new ones are advertised as using less electricity and less water. --Normal-- cycles stretch to two hours and beyond, vs. around one hour for older machines.Jun 24, 2014read more >>