There is water and there is Gerolsteiner. Gerolsteiner Mineral Water is a true miracle of nature: Filtered through the layers of rock in the Volcanic Eifel, the water gathers drop by drop at depths of up to 200 meters. Here it remains protected from outside elements and is, thanks to the carbonic acid, fresh and clear. And this is exactly the way it is when bottled directly at the source—naturally pure and unadulterated. (from Gerolsteiner)