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3D Printing of Mushroom Mycelium

21 Nov 2025

Natural resources are currently becoming increasingly interesting in the context of additive manufacturing. For filament printing or the 3D printing of pasty materials, scientists are relying on biopolymers that, in combination with other materials, enable the additive construction of molded and designed parts. In addition to corn starch for the production of polylactic acid (PLA) or pectin from citrus fruit peels, mushroom mycelium is also increasingly becoming a focus of researchers. The mycelium of the mold Aspergillus niger for example, which is a byproduct of many biotechnological processes, contains up to 25 percent chitin. Chitin is a biopolymer found particularly in the shells of insects and crab shells, but also in the cell walls of fungi.

In his lecture, Prof. Dr. Sascha Peters will present current projects for the development of 3D printing with mushroom mycelium and outline the development status of the ""Mycoustics"" project funded by the Federal Ministry of Education and Research (BMBF). In this project, researchers at the Fraunhofer IWU in Dresden are developing a 3D-printed transmission loudspeaker with living fungal mycelium. In a single process step, both sound-reflecting and sound-absorbing surfaces are to be created, thus influencing the sound experience. Desired material properties for a specific application can be specifically adjusted during the cultivation of the fungal mycelium by influencing the environmental conditions.

Speaker: Dr. Sascha Peters, CEO, Haute Innovation

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3D Printing of Mushroom Mycelium

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