Descale espresso machine: That's how it works

An espresso machine not only has to be cleaned regularly, but also has to be descaled from time to time. This is not so difficult and has a very positive effect on the taste of your espresso and the longevity of your espresso machine. Below we explain how to descale your espresso machine step by step.

How often does an espresso machine have to be descaled?

How often you should descale your espresso machine depends on how hard the water is and how often you use it. With medium-hard water and two to three cups a day, a descaling every three months makes sense. With soft water and the same use four to five months are sufficient, with more use and hard water the espresso machine should be descaled.

Negative consequences of lime

Lime deposits have many effects:

  • The taste of the espresso is changed.
  • The brewing process takes longer.
  • The heat transfer is influenced, so that the optimum temperature for the espresso is no longer present.
  • The espresso machine makes noise.

Which decalcifier?

Which descaling agent you use for your machine depends on your espresso machine. It is best to check which decalcifier is recommended by the manufacturer. If it is based on citric acid or vinegar, you can also simply use vinegar essence to descale. If you want to play it safe, use the decalcifier recommended by the manufacturer.

Descale the espresso machine step by step

1. Apply mixture and pour in

Use the descaler mixture according to the package instructions. If you use vinegar essence, add one-third vinegar essence to two-thirds water. Stir the solution well and fill the water tank of your espresso machine with it.

2. Start up

Turn on the machine and wait until it is ready for use. Press the button for the espresso preparation and wait until the first drops drip from the brew group. Then switch off the preparation and let the mixture, which is now also in the lines, act for one hour.

3. Let it through

Once the hour has passed, press the Espresso Preparation button again and this time let all the water from the kettle run into the drip tray. Make sure that the bowl does not overflow! This can happen if your boiler or water tank has a larger capacity than the drip tray. In this case you have to stop the process in between and empty the bowl.

4. Idling

Run through all the water and pour it away. Then fill your water tank with clear tap water and repeat the process at least two times without a decalcifier to remove residue and odors from the decalcifier.

Tips & Tricks

If your espresso machine is equipped with an aluminum kettle, you should by no means use home remedies such as vinegar or citric acid. Instead, use special, mild decalcifiers for aluminum boilers.

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