But Seriously, How does a Dishwasher Work?

Dishwasher Cleaner Benefits

We all know how a dishwasher works – dishes go in dirty, and then they come out clean. But is it really as simple as it seems? You might not be aware of the exact process that goes on inside your closed dishwasher while it does it job. A dishwasher is a cleaning machine that performs a fairly complicated series of actions to make sure your dishes and cutlery get the perfect clean that they need, but the mechanisms behind the cleaning are actually quite simple. Most dishwashers follow the same seven step process:

  1. Add water. This doesn’t actually fill up the dishwasher on the inside, because the water is filled in a shallow basin at the bottom.
  2. Heat the water. This is done with a heating element in the shallow basin at the bottom of the dishwasher. The heating element is usually located underneath the jet arms.
  3. Add the cleaning detergent. The detergent is added automatically at the right stage of the wash by the dishwasher’s computer or timer.
  4. Wash dishes. The heated water and detergent is pumped up through the jet arms, and the pressure causes them to spin and shoot out the water with enough force to make sure the dished get a good wash and clean.
  5. Drain the dirty water.
  6. Rinse the dishes. Clean water is added and heated as before, but no detergent is added this time. This water is pumped through the jets to make sure there is no detritus or detergent left on the dishes.
  7. Drain the second lot of water dirty water.

All you need to do in exchange for all of the hard work a dishwasher does for you (as well as the obvious things such as actually loading the dishwasher) is to use a dishwasher cleaner once a month. Yes, as surprising as it sounds, you need to clean your dishwasher to ensure that it works well always. The reasons for cleaning your dishwasher become a lot clearer when you take a look at the components that comprise a dishwasher in some more detail.

Heating Element

These are pieces of metal that convert electricity into heat, and heat the water to the correct temperature for washing and cleaning. As these are in direct contact with the water, these are particularly prone to accumulating lime-scale deposits over time.


The pump is a motor that either forces the water through the jets during the cleaning process, or helps to direct the dirty water to the drain during the draining process. The dishwasher’s computer opens and closes the valves at the right time to make sure the water goes in the right direction.

Spray Arms

These arms are hollow, and the pressure of the water being pushed through them causes the arms to spin, ensuring that all dishes get an even clean. Food, grease, and other dirt can block these jets over time. So they must be cleaned thoroughly.

You don’t need to manually clean all these parts. Just use a reliable cleaning product like Finish Dishwasher Cleaner to get rid of any lime-scale that accumulates in the dishwasher. Finish Dishwasher Cleaner also removes food particles and grease detritus that tend to clog the dishwasher and reduce its efficiency. Regular use of Finish can ensure that your dishwasher continues working at peak efficiency.