Bad Dürrenberg

Saltwater from the Bad Dürrenberg spa delivers gentle cleaning power

With a salt content of between six and eight percent, the Bad Dürrenberg water comes directly from a spring located next to Germany’s Saale River. To concentrate the saltwater, Johann Gottfried Borlach (1687–1768) commissioned the building of a graduation tower, a type of salt works. The graduation tower utilises an amazingly simple and energy-saving method to increase the salt content of the spring water. Pumps powered by wind energy convey the saltwater to the top of a giant, twelve-metre-high wooden frame that supports blackthorn branches. The saltwater is immediately allowed to drain through openings in the sides and flow down over the extensive surface area of the branches, through which the wind can blow freely. The water evaporates, and concentrated and purified brine with a salt content of 22 to 24 percent emerges at the bottom.

The saltwater from Dürrenberg is pure and of very high quality. It has a similar composition to water from the Dead Sea and its beneficial properties have gained worldwide recognition. Today medical authorities have recognised the healthful effects of inhaling the saline mist that is generated by the graduation process. It moistens the respiratory passages; minute salt crystals settle on the walls of the airways and dissolve secretions; the entire respiratory tract is cleansed of bacteria.

Bad Dürrenberg in Germany is home to the longest salt works in the world, extending more than 636 metres. Saltwater from the Bad Dürrenberg spa has a similar composition to water from the Dead Sea.