Green hills and forests in the Volcanic Eifel countryside at dawn

No two waters taste the same

Whether it’s the level of mineralization, its taste or purity – the quality of mineral water is determined by the geological makeup of the region from where it is sourced. What does “purity” mean? How does the mineral water get from its source to the bottle? How do waters differ, for example, how is mineral water different from tap water? You will find all the answers to these and many other questions in this section.

What makes Gerolsteiner Mineral Water so special?

How do waters differ?

Safely from the source to the consumer

Mineral water tests

You can see which and how many minerals a mineral water contains on label of the bottle. However, the mineral calculator allows you easily and quickly compare nearly 500 international waters.

No two mineral waters tastes the same

The A to Z of waters

What is bicarbonate? When is a mineral water deemed low in sodium? And where does carbonic acid come from? Learn the terminology of mineral water and our mineral water-based beverages.

Frequently asked questions

Some questions are repeatedly asked, so we’ve compiled a set of answers to address the most popular topics. Some of these include: How safe is mineral water? Does PET contain plasticisers? What is mineral precipitation? Check out the “Frequently asked questions” section.