A research group at the Faculty of Forest Sciences and Forest Ecology at the University of Göttingen successfully developed a novel process to produce environmentally friendly and sustainable insulation boards made of “granulated” popcorn that offer excellent thermal insulation properties and good protection against fire. "This new process, based on that of the plastics industry, enables the cost-effective production of insulation boards at an industrial scale," explains the head of the research group, Professor Alireza Kharazipour. "Especially in the field of insulation in construction, this ensures that natural insulation materials are no longer just niche products." In addition, the new popcorn products have water-repellent properties, which opens up even more opportunities for practical applications.