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Coffee or milk froth quality varies widely

Coffee or milk froth quality varies widely — Limescale or milk type issues

Siemens · Fully Automatic Espresso Machines

What does Coffee or milk froth quality varies widely mean?

The quality of coffee or milk froth is inconsistent. This can be caused by limescale build-up or the type of milk used.

Common Causes

  • Build-up of limescale in the appliance
  • Milk froth quality depends on the type of milk or plant-based alternative used

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Descale the appliance to remove limescale.

  2. 2

    Optimise the milk froth result by selecting an appropriate type of milk or plant-based drink.

  3. 3

    Ensure the milk system is clean.

Browse all codes in this manual (26)
Verified technical data. Last updated: April 2026

Related Faults

Appliance is not dispensing drinksAppliance is not dispensing drinks — Water filter or tank blockageAppliance is not dispensing hot waterAppliance is not dispensing hot water — Soiled milk systemAppliance is not dispensing milk frothAppliance is not dispensing milk froth — Milk system issues
Source: Siemens Fully Automatic Espresso Machines
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