WMF STELIO Aroma Digital Mode D'emploi page 14

Descaling agent
We recommend using Cromargol®. This product is highly effective, food safe and is
neutral in taste and smell. Thanks to its special care formula with six high-quality
and protective additives, Cromargol® is also very gentle on materials.
You can usually purchase Cromargol® from the store where you purchased your
appliance or from your chosen dealer.
You can also use a commercially available descaling agent that is suitable for filter
coffee machines.
Do not use vinegar or vinegar concentrate, as this can damage materials in the
appliance.
When using descalers based on citric acids, precipitates could form during
descaling that seal the limescale layer or clog the lines in the appliance. Descaling
with citric acids also takes too long, and therefore complete descaling cannot be
guaranteed.
Damage caused by the use of an unsuitable descaling agent or through non-
compliance with the descaling instructions is not covered by our warranty claim.
Handle the descaling agent carefully to ensure that no furniture or clothing is
damaged.
Descaling
▪ Insert the paper filter and place the jug (7) in the machine. Any more substantial
amounts of limescale residue collect on the filter paper and thus prevent the
outlet valve from clogging.
▪ Fill the water tank (4) with one portion (100 ml) of Cromargol®, fill with tap
water up to the 8 Cups marker and switch the device on.
▪ Measure out and use other descaling agents according to the manufacturer's
instructions.
▪ After the descaling solution has passed through, empty the jug (7), switch off the
device and allow to cool for 5 minutes.
Important: Then to rinse, fill the tank (4) to the 8-cup mark with fresh tap water
and allow this to run through the machine. Then rinse the filter (2) and jug (7) under
running water.
Note: In the event of heavy calcification, repeat the descaling process.
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