· The role that carbon dioxide from the spring plays in the particular quality of Gerolsteiner mineral water: thanks to its origin in the volcanic Eifel area Gerolsteiner Sparkling/Medium is mineralised to a high extent and in a balanced way. The natural carbon dioxide from the spring plays a central role in this regard. This is especially because in the Gerolstein region two geological features collide: carbon dioxide of volcanic origin and dolomite rocks containing calcium and magnesium. Firstly the carbon dioxide dissolves the valuable minerals from the otherwise nearly insoluble dolomite and combines them with the mineral water. Then the carbon dioxide underscores the refreshing taste of the mineral water.
· For the production of Gerolsteiner mineral water we make exclusive use of natural carbon dioxide from the spring.
Apart from the natural carbon dioxide from our own springs we also use natural carbon dioxide from springs in the areas of the volcanic Eifel which are situated close to the area of our own springs, and which does not differ in its natural composition from the carbon dioxide from our springs.
The carbon dioxide is conveyed in conjunction with deep water from subterranean deposits and added as needed to the natural mineral water before bottling. Thus the content of the carbon dioxide remains constant, depending on the type of mineral water.
· Carbon dioxide content of Gerolsteiner mineral water:
Gerolsteiner Sparkling: 7.0 g of carbon dioxide / litre
Gerolsteiner Medium: 4.5 g of carbon dioxide / litre
Gerolsteiner Natural: without carbon dioxide
· What is industrially produced carbon dioxide? What is fermentation carbon dioxide? Why does Gerolsteiner not use both?
Industrial carbon dioxide is released during the combustion of fossil fuels, in lime burning or in the synthesis of ammonia and is used by many of our competitors.
Fermentation carbon dioxide is a by-product of the biological process of alcoholic fermentation.
Industrial and fermentation carbon dioxide do not correspond to the specific quality standards which apply to Gerolsteiner mineral water. Therefore we use only natural carbon dioxide from the spring.
2. Follow-up questions:
· Why is there no indication on the label that Gerolsteiner Sparkling and Gerolsteiner Medium contain carbon dioxide from their own springs?
Apart from the natural carbon dioxide from our own springs we also use natural carbon dioxide from springs in the areas of the volcanic Eifel which are situated close to the area of our own springs. As with our own supply, this carbon dioxide is taken from natural spring deposits and does not differ in composition from the carbon dioxide from our own springs. It is also subject to the same strict quality test methods. The Mineral and Table Water Regulation (MTVO) differs, however, between carbon dioxide from our own springs and natural carbon dioxide from other natural spring deposits. If apart from carbon dioxide from its own springs a mineral water product also contains carbon dioxide from other natural springs, the MTVO provides the following designation: “natural mineral water mixed with carbon dioxide”. The declaration on the Gerolsteiner labels corresponds to this provision.
· Why does Gerolsteiner not exclusively use the natural carbon dioxide from its own springs?
In order to ensure the supply of our bottled water products with carbon dioxide from the spring, for some products the addition of natural carbon dioxide from springs in a neighbouring area is also required in addition to the carbon dioxide from our own springs.
www.mineralwasser.com (IDM German Mineral Waters Information Centre) www.heilwasser.com (German Mineral Springs, Information Office responsible for medicinal water), there also abstracts of scientific studies dealing with the impact of the carbon dioxide; within the context of communication activities with respect to the HCR, references to these may be used only where St. Gero is concerned.
Þ Types of water, Mineral and Table Water Regulation (MTVO)
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For further information and graphical material please contact:
Gerolsteiner Brunnen GmbH & Co. KG
Phone: +49 (0) 6591 14 237
Fax: +49 (0) 6591 14 249