Mycelium is one of the most innovative solutions for environmental sustainability. Discover what it is, how it is used, and why it represents the future of ecological design.
What is mycelium?
Mycelium is the vegetative part of fungi, formed by a dense network of filaments called hyphae. Although often invisible to the naked eye because it develops underground or inside organic materials, mycelium is one of the most extensive and fascinating biological structures in nature. Unlike the fungus we know (the "fruiting" part, like the classic cap), mycelium works silently: it extends for kilometers in the soil, decomposing organic matter, recycling nutrients, and creating connections between plants and other organisms.
Precisely because of these capabilities, it is now at the heart of a sustainable revolution.
Where is mycelium found?
Mycelium is everywhere, but unseen. It grows underground, among leaves, in decaying trunks. It is the hidden part of fungi, an invisible and branched network of filaments, which, as we have seen, are called hyphae, extending into the soil or organic materials. It can be found in forests, cultivated fields, and even in industrial waste substrates such as straw, sawdust, or cultivation residues. Mycelium is a discreet but fundamental organism for the balance of ecosystems. To give an idea of its importance and vastness,
globally, it is an organism that exceeds the mass of humans by 5 times.
What does mycelium eat?
In nature, mycelium feeds on organic materials rich in carbon, helping to decompose them and redistribute micro and macro nutrients to plants. Depending on the essence type, mycelium eats anything and loves plant waste: straw, wood chips, cereal husks, corn husks, hemp fibers. This makes it perfect for circular production systems:
mycelium feeds on what would otherwise be thrown away, transforming waste into resources.
What is mycelium used for?
What is the function of mycelium? This is a key question to understand why it is now spoken of as a "natural revolution." In nature, mycelium's task is to decompose complex organic materials such as lignin and cellulose. It is the recycler par excellence, capable of transforming waste into nutrients, maintaining healthy soil and supporting the entire cycle of life. In sustainable design and production, this same capability is exploited to biofabricate compostable materials: packaging, displays, panels, furniture elements. It grows by "eating" plant waste and takes on a precise shape, becoming an ecological, solid, and customizable material.
What are fungal hyphae used for?
Hyphae are the microscopic filaments that make up mycelium. They intertwine to form a resistant and lightweight three-dimensional structure, which can grow into a predetermined shape. Hyphae play a crucial role: they degrade the substrate and bind particles together, transforming them into a compact material. In practice, hyphae are the natural architecture at the base of every mycelium product. This network is useful for the research and degradation of materials present in the soil, but it is also a communication network between living organisms and a distribution network for food among living plant beings in the forest based on their needs.
Is mycelium a construction material?
Yes, mycelium is increasingly being studied and used as a biomaterial for construction. Various scientific studies confirm its insulating, sound-absorbing, and fire-retardant properties. It is lightweight, compression-resistant, and completely compostable. It is used in wall panels, acoustic insulation, furniture, set designs, and design objects. It is not yet suitable for load-bearing structures, but it is already a valid sustainable alternative to many plastic materials or those derived from petroleum. Mycelium is much more than a biological curiosity: it is a revolutionary resource for a sustainable future. Its ability to transform waste into useful materials, to grow without pollution, and to fully biodegrade makes it a key player in the ecological transition. Packaging, design, light construction: the applications of mycelium in these sectors are already a reality.