How is Gerolsteiner mineral water made?
The origin of all types of water
© GerolsteinerWhat are the differences between mineral water and other types of water? The diagram on the right-hand side illustrates the origin of different kinds of water.
Mineral water and spring water derive from deep water. In contrast, tap water (also known as municipal water), is often a mixture of surface and ground water.
From deep subterranean reservoirs
From pure verified sources
Has nutritional properties
Naturally contains minerals
Bottled at the source
Internationally regulated
From subterranean water resources
Sources do not have to be verified pure
Does not have to contain a constant amount of minerals
Can be bottled from multiple sources
Limited official regulations
Mostly derived from ground and/or surface water (lakes, dams, bank filtrates)
Usually processed before it is suitable for consumption
Multiple treatment procedures and chemical ingredients are allowed during processing
Combination of water from different sources (for example tap water) and can have other ingredients added, for example, sodium.
Physically and chemically purified
Can be produced and bottled everywhere
May also be served using a tap system
Limited official regulations
The Origin of Natural Mineral Water
© Maximilian Lehrke PhotographyNatural mineral water must be in the same original and pure condition when it is filled into the bottle as when it came from the ground. It may not contain any chemical substances, additional minerals or other types of water. Only the removal of iron (deferrisation), manganese and sulphur is permitted by law. Iron can precipitate in the bottom of the bottle in the form of unsightly brown flakes. Too much sulphur would affect the smell and taste. Regulating the carbonic acid content is also permitted.
The purity and originality of every mineral water is controlled by regular inspections. Once any contamination is detected, the water loses its “natural mineral water” designation and may no longer be sold as mineral water.
You have to go very deep into the earth’s crust to locate natural mineral water. There are a limited number of sources worldwide. Gerolsteiner mineral water comes from sources of up to 250 meters deep.
water knowledge
Minerals in mineral water
Find out what makes natural mineral water so special and where it comes from.
find out more about minerals