Mineral water is produced from rainwater. The water penetrates into the ground and seeps away. On its long journey deep underground, it passes through layers of rock that purify and filter the water. They also enrich it with valuable ingredients such as minerals and trace elements. Depending on the layer of rock, this happens in different concentrations and compositions. Besides magnesium from dolomite, salt deposits release sodium, rocks rich in gypsum provide sulphate and rocks rich in lime provide calcium and hydrogen carbonate. Especially in volcanic regions, the water (H₂O) is enriched with natural carbon dioxide (CO₂), which produces carbonic acid (H₂CO₃). The mineral water is stored in protected water deposits that prevent contamination. From region to region, the layers of rock through which the water passes differ, as do the ingredients it absorbs.

There is a wide range of water in Germany: the spectrum ranges from table and spring water to natural mineral and healing water as well as our drinking water. But what are the differences between the types of water?

Mineral water is originally pure and comes from underground water resources protected from pollution. It must be filled directly at the source location. Its natural content of minerals and trace elements has a positive effect on the human organism. The natural mineral content of the mineral water must not be altered. Natural mineral water requires official recognition and is the best controlled food.

Medicinal water also comes from underground water sources and must be bottled directly at the source. Due to its special composition, it has proven healing, soothing and preventive effects. It is subject to the German Medicines Act (Arzneimittelgesetz) and requires official and drug approval.

Spring water also comes from underground deposits, but it does not have to prove its original purity or nutritional or physiological effect. Spring water only has to meet the criteria applicable to drinking water.

Table water is produced industrially. It can be artificially mixed from different waters (e.g. drinking water or mineral water). Seawater, natural brine, certain authorised additives and carbon dioxide may also be added to table water.

For drinking water, so-called raw water (groundwater and/or surface water, e.g. lake water) is taken from the water cycle, the quality of which varies greatly from region to region. In most cases, it is only suitable for consumption after extensive preparation. The waterworks constantly monitor the quality of drinking water, but are only responsible for it up to the water meter.

Our body needs minerals for the smooth running of metabolic processes. Since he cannot produce them himself, we have to take in minerals through food. Minerals perform numerous tasks in the body and are important for maintaining performance and health. The human body stores more than 2.5 kg of minerals and trace elements. These control the fluid balance and are responsible for the functioning of muscles and nerves. At the same time they regulate the acid-base balance and activate various enzymes.

Potassium controls the fluid balance and is responsible for the functioning of muscles and nerves. It regulates the acid-base balance and activates various enzymes.