The Junkers mill in Deimerbachtal was a ban mill until the Napoleonic era and was part of the "Uhler Bann". It is first mentioned in a document in 1733 as "Lauxenmühle" (after the owner at the time, Laux). Around 1800, Johann Nicolaus Junker was the first miller in the Junker family to take over the grain mill, which is still owned by the family today.
In 1913, the mill was equipped with a diesel engine drive in addition to water power, which made the grinder more independent of the seasonally different water levels in the Deimerbach. In 1928 a new wheat and rye mill was built next to the old house, powered by a water turbine to replace the old water wheel and diesel engine. After the renovation, the Junkersmühle was one of the largest mills in the anterior Hunsrück. After the cooperative mills gradually ceased operations, the customer base extended from Kastellaun to the surrounding villages (Uhler, Mörz, Buch, Mannebach, Sabershausen, Zilshausen) to Lahr and Lieg. By the end of the mill operations in 1958, the grist was picked up from the farmers and the flour then returned. In addition to the old mill building, which was still in its original state, the newer mill from 1928 was converted into a modern house, in which the Junker family today runs an inn and excursion café.