Melitta manuals recommend cleaning the milk system immediately after preparing milk-based drinks. Dried milk quickly blocks the fine passages used to create foam.

Run the automatic milk cleaning programme and thoroughly rinse all removable milk system components.

The milk outlet and frothing nozzle contain very small air passages that can become blocked with milk residue.

Remove the milk nozzle, dismantle it if your model allows, clean each component thoroughly and ensure all openings are clear before reassembly.

Melitta milk systems mix steam with air to create foam. If the air intake becomes blocked, milk may simply heat without producing foam.

Inspect the milk frother components and remove any dried milk deposits that may be restricting airflow.

A partially blocked or loose milk hose can prevent the machine from drawing milk correctly.

Remove the hose, flush it with warm water and reconnect it securely at both ends before testing again.

Very warm milk does not froth as effectively as chilled milk.

For the best results, use fresh cold milk taken directly from the refrigerator.

Different types of milk naturally produce different amounts of foam. Skimmed and semi-skimmed milk generally froth more easily than full-fat milk, while some plant-based alternatives require barista-style formulations.

If foam quality has recently declined, try a different fresh milk before investigating further.

Limescale inside the steam circuit can reduce steam pressure, resulting in weak or inconsistent milk frothing.

If the machine indicates that descaling is due, complete the full descaling programme using the recommended descaling product.

• Milk heats but produces little or no foam.
  
• Froth is thin, watery or disappears quickly.
  
• Milk splutters from the outlet.
  
• Milk is not drawn through the hose.
  
• Steam output is weak.
  
• Machine requests milk system cleaning frequently.

Melitta manuals recommend rinsing the milk system after every milk drink, cleaning the complete milk circuit daily if used regularly and completing the automatic cleaning and descaling programmes whenever prompted. Using fresh cold milk and keeping the milk hose and frothing nozzle free from dried milk residue will help maintain consistent foam quality.

If your Melitta coffee machine still is not frothing milk after cleaning the milk system, checking the hose and completing the descaling programme, the fault may involve the steam valve, thermoblock, milk connector or another internal component. Visit our Melitta Fault Codes & Error Messages page and Melitta Troubleshooting hub for further diagnosis and brand-specific support.