The blackthorn walls facilitate the evaporation of water from the brine, increasing its salt concentration from roughly 8% to 25%.
The original brine-pumping mechanism relied on water wheels powered by the adjacent Saale river.
Salt production in Bad Kösen ceased in the mid-20th century, transitioning the site entirely to health and wellness use.
The aerosol produced mimics the air quality found at the seaside, making it a therapeutic destination for respiratory conditions.
The facility is part of the larger 'Saline' heritage sites in the Saale-Unstrut region.
The Gradierwerk in Bad Kösen is an extensive 18th-century structure originally designed to concentrate brine for salt production. It functions today as an open-air inhalatorium, where brine trickles over blackthorn walls to create a salt-mist microclimate beneficial for respiratory health. The current structure is part of the Kösalina health facility complex. Visitors walk along designated paths to inhale the mineral-rich aerosol produced by the natural evaporation process. It remains one of the largest and most well-preserved examples of industrial architecture in the region. The structure spans significant portions of the local spa gardens, integrating industrial history with wellness tourism.
From the riverbank path looking up at the full expanse of the timber-framed structure.
Bring a light jacket as the immediate area near the brushwood walls can feel significantly cooler and more humid than the surrounding gardens.
Walk the entire length of the structure to experience variations in the density of the salt mist.
Plan your visit for a breezy day, as wind speeds influence the intensity of the salt aerosol dispersion.
Do not expect to see active industrial salt production, as this is now purely a health and wellness site.
The inhalatorium operates seasonally from late spring through early autumn.
Avoid touching the blackthorn twigs as they are sharp and often coated in salt deposits.
