The general economic crisis resulting from the Napoleonic Wars and their consequences also reached Turrach's mining in the first two decades of the 19th century. Following that, the iron business—under Peter Tunner senior (the father of Peter Tunner), who led the company from 1823 to 1844—underwent a considerable advancement, due to the streamlining of working methods and the introduction of modern technologies. In the middle of the 19th century, the annual quantity of ore delivered by the approximately 60 miners amounted to about 100 to 120,000 quintals (approx. 5,600 to 6,700 t). At that time, mining was only done during the winter, because the ore had to be pulled to the smelting facilities in bags.