I want use distilled water in my new Rowenta DG8030 steam station but instructions say to use 1/2 tap water and 1/2 distilled water or 100% spring water. Why can't I use 100% distilled water?
Why can't I...
Believe it or not, distilled water is quite corrosive, more so when hot. Distilled water doesn't contain any dissolved ions but the water is ionic in nature, the ions of every water molecule tend to dissolve away other elements. Steam generating plants and steam ships as well as steam heating systems treat the water with chemicals to keep the water from eating away the metals of the system and test the chemical makeup several times a day while operating. [I spent 4 years in the Navy on a steam powered ship.]
The same holds true for smaller steam appliances like espresso machines and steamers. A very thin coating of calcium carbonate [limestone] is a good protector but too much makes for inefficiencies and burned up elements.
Somewhere I read that Chrystal Geyser spring water is approximately the correct ion balance for espresso machines and I have been using it for years in my espresso machine. In any case you still need to occasionally de-scale your steamer per the manufacturers recommendations.
Feb 03, 2015 |