I was surprised with the instructions on 2 new kitchen appliances we bought last week. One was a floor steam cleaner and the other was a coffee maker. Both devices were supplied with descaling sticks and strict instructions on how important it was to keep them scale free.
No problem in this household though, with an Ecowater ESM11+ the house has perfectly softened water, the Ecowater ERO 375 Reverse Osmosis unit then gives highly purified water at the kitchen sink, really convenient for the coffee maker. The RO water is so sweet to drink too!