Acts quickly and thoroughly

Cronargol of WMF is ready prepared in 100ml bottles supplied. One bottle is enough for unique descaling a coffee machine.
The application went as easily as I'm used to from my previous funds.
After the rinsing was not anything to complain about the smell or taste of the coffee for me.
With regard to the protection of my machine, I can not comment, of course, after a single application. I trust in the name of WMF and assume that one knows the place well enough with metals and their treatment.
No matter what you use, with no acid no descaling my knowledge possible.
To at all times to see if an action occurs, I have sacrificed a precious bottles and treated my kettle with it.
The result is very convincing. No comparison to my other experiments with vinegar (which I would never do to my fully automatic course).
The kettle was sparkling in no time.
This strengthens my confidence in this product.
Price I find it unacceptable. I descale about every 2-3 months. Since this package with four bottles under