Long descaling interval 

Exclusive to Miele
Diamond-Like Carbon coating
The steam system needs to be descaled regularly to ensure the appliance has a long service life. The boiler features a special Diamond-Like Carbon coating that is designed to extend the descaling interval significantly. This means that there is no need to perform descaling until a flow rate of around 80 l of water or 20 working days has been reached (depending on the water hardness). 
Features dependent on model – Illustration(s) as an example, for information