In their search, Dahmen and Frid-Jimenez discovered the world of mycelium biocomposites. The product is a resistant material with qualities similar to polystyrene foams. Mycelium bicomposites are at risk of contamination by mould and bacteria if they are over half-metre in thickness. To overcome this obstacle, Dahmen created a new process inspired from the wasps’ nest. “I was really amazed at the honeycomb structure, because it’s a highly efficient way of occupying space,” he said. “It’s scalable, it can go in any direction, and it’s extremely spatially efficient.” “Their biggest application in the long run is in architecture and construction,” said Dahmen. “The average age of commercial buildings in North America is under 40 years. If we could imagine construction materials that add positive value to ecosystems as they break down, we have a whole new paradigm for the way we approach buildings, at a time when we’re demolishing most buildings long before they wear out.” According to Dahmen mycelium bicomposites could be used instead of polystyrene, from packaging to building insulation. “Styrofoam is a material that functions for a short amount of time as packaging, and then spends hundreds, if not thousands, of years in a landfill,” he added. Mycelium bicomposites not only require less energy to grow but also completely decompose when composted. They also help break down other materials in the waste stream and make them accessible to other organisms. An American company recently signed a contract to supply Ikea with mycelium-based packaging. The method had yet to be done in Canada.