Key Takeaways
- Clean the brew unit weekly — remove, rinse, air dry
- Descale every 2–3 months or when prompted by the machine
- Clean milk pipework after every milk drink to prevent blockages
- Use quality, medium-roast beans — oily dark roasts clog grinders faster
The Bottom Line
A Miele coffee machine that receives proper maintenance will last 15+ years and deliver excellent coffee throughout. Neglect the brew unit and descaling, and you will face a From $300 repair bill within 3–5 years.
Daily Care
Run the Automatic Cleaning Cycle
Most Miele coffee machines run an automatic rinse cycle when you turn them on and off. Do not skip or cancel these cycles — they flush residual coffee oils from the brew chamber and internal pipes. If your machine prompts for a cleaning tablet, use one promptly.
Clean the Milk System
After every milk-based drink (cappuccino, latte, flat white), run the milk system rinse. If your model has a milk pipe, detach it and rinse under warm water. Milk residue left in the system for even a few hours begins to sour and can block the narrow internal valves.
Empty the Grounds Container and Drip Tray
Empty both daily or when prompted. Stale wet coffee grounds breed mould rapidly. Wash the drip tray with warm soapy water and dry before replacing.
Weekly Care
Clean the Brew Unit
Open the service door (usually on the right side of the machine), press the release lever, and slide out the brew unit. Rinse thoroughly under warm running water — do not use soap or put it in the dishwasher. Let it air dry completely before reinserting. Check that the unit slides back in and latches with a firm click.
Wipe the Bean Hopper and Chute
Coffee bean oils accumulate in the hopper and the chute leading to the grinder. Wipe with a dry cloth weekly. If you see oily residue or clumps, empty the hopper and clean more thoroughly. Oily buildup is the primary cause of grinder blockages.
Every 2–3 Months
Descale
Run the descaling program using Miele descaling tablets. Do not use vinegar — it damages internal rubber seals and leaves a taste that is difficult to remove. The descaling cycle takes 30–45 minutes and uses approximately 500ml of water. Do not interrupt it.
Deep Clean the Milk System
In addition to daily rinsing, run a milk system deep clean every 2–3 months. Some models have an automatic milk cleaning program — use it. For models without, soak the milk tube in warm water with a Miele milk cleaner for 15 minutes, then flush with clean water.
Choosing the Right Beans
Bean choice affects maintenance burden. Very dark, oily roasts clog the grinder faster. Very light roasts are harder to grind and can strain the motor. Medium roasts with a dry surface are ideal for automatic machines. Avoid flavoured beans — the added oils and sugar coatings accelerate grinder and brew unit wear.