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Miele Steam Oven: Mistakes to Avoid

The descaling and maintenance lessons I wish Miele had told me before I bought my steam oven, learned the hard way.

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1
Don't ignore the reminders. After ten descaling warnings, the oven locks the steam function until you descale.
2
Start the program: Maintenance → Descale.
3
Use only original Miele descaling tablets. A regular descaler labelled 'suitable for steam ovens' stopped my oven mid-cycle with an error, and a technician had to fix it.
4
Use two tablets per cycle. With one tablet, I got the error again.
5
Fill the water tank to the curved-arrow mark, slightly below the maximum line.
6
Drop in the two tablets and wait about 10 minutes until they fully dissolve and the water turns clear.
7
Empty the condensate container and start the program. It takes 41 minutes.

The rinse isn't enough. After every steam cycle the oven prompts a 10-minute rinse, but a lot of water is still left inside.

Moisture is the enemy. Water left in the oven can lead to bacterial build-up and rust small internal parts.

Run the drying cycle yourself. Miele doesn't prompt it. Start it from the Maintenance menu; it takes about 10 minutes and helps the oven last longer.