The Grabenöle, a listed oil mill dating from the 16th century, stands in a forest clearing on the Mülibach near Lüterswil/SO. After decades of decay, the site was extensively restored and reconstructed between 1987 and 1988. Now, after 30 years of operation - edible oil is extracted from tree nuts - the historic plant is once again due for an overhaul. The exciting restoration story is told by the project manager and expert carpenter Moritz Schiess (studies BFH Burgdorf, monument preservation and conversion). He gives an insight into the technical commissioning of the plant 30 years ago. What achievements and setbacks did the major project of commissioning the trench oil experience? What restoration measures were taken and why? What materials were used for the components? How was the lack of certain craftsmanship skills dealt with? Gain an insight into the operation of the mill.
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