The layers and the structure of the earth's crust play a key role in the formation of mineral water. Three basalt cliffs form the substrate where the headwaters of Güssinger mineral water are to be found. This "basalt crown" was once pushed up by volcanic activity and indicates the presence of a fiery liquid magma core in relative proximity to the surface. The thermal wedge from this magma provides the energy for a thermal process that plays a decisive role in the formation of Güssinger mineral water. It effects the conversion of crystallogenic rock masses to juvenile water and natural carbon dioxide. Juvenile water is ultra-fine and germ-free. This water, impelled by the carbon dioxide, rises into higher regions through microchannels that form over and over again in highly fissured, overlapping graphite schist. In this way, valuable mineral salts are dissolved and carried along. Finally, this pristine water accumulates in regions higher up and forms the mineral water horizon lying below the protective clay.
From the surrounding forest mountains, crystal clear water makes its way into the depths through infinitely fine veins. It passes through several filter levels of gravel, quartz sand and mica until it encounters the enriched primitive water. The resulting mineral water is under increased pressure, created on the one hand by the presence of carbonic acid and on the other by the height differences of the individual water levels. If the protective clay layer is now perforated by drilling, Güssinger mineral water bubbles up to the surface as an artesian source.