The ingredients are acorns, oak apple, and aluminum wool. The process is known as ikat. Though it may seem to have been the case, in the Vorarlberg company TISCA’s booth there was neither adulteration nor fooling around with natural cooking. An extremely high-precision process was used there to demonstrate the basis for a rug collection’s patterns using designs by Anneli Tegelberg of Sweden. Before the yarn was woven, it was dyed by section – and the German designer Elke Fiebig contributed her knowledge about ecological dyeing with plant-based materials. At the VIENNA DESIGN WEEK 2017, TISCA and the designers offered this knowledge transfer as part of an ikat and dyeing workshop. Hands-on experience that was extremely popular among the profoundly impressed audience.