Mycelium is the vegetative root of fungi by which fungi absorb nutrients from organic matter and bind them. The treatment of mycelium results in a foam-like composite material that is lightweight and biodegradable, called mycelium-based composites. The material properties of this composite material depend on various factors, such asthe substrate mixture, the fungal species used for inoculation, and the environmental conditions of growth. By modifying these factors, it is possible to obtain graded materials that have different properties.