Gerolsteiner

Der Mineralienrechner is an online resource for exploring and comparing the mineral composition of mineral waters. Its comparison tool covers more than 1,000 varieties, allowing visitors to select waters and view their ingredients side by side. The results include key minerals such as calcium, magnesium, bicarbonate, potassium, sodium, chloride, and sulfate, helping users understand differences and identify a composition that suits their preferences.

Alongside the comparison service, the site offers a water lexicon with background information about mineral water and a frequently asked questions section. Its content explains how a water’s mineral profile develops as it passes through layers of soil and rock, and notes that natural mineral water is bottled at its source. The site also describes the role of legally required controls in supporting consistent quality, and points to Gerolsteiner as an example of the bottling and testing process. With practical comparison tools and accessible educational material, the Mineralienrechner helps visitors learn more about what is in their water and make informed comparisons.