Australian study finds fungal solution to recycle discarded mattress foam

06 February,2026 09:41 AM IST |  Canberra  |  Agencies

Researchers in Australia have discovered an innovative way to recycle discarded mattress foam using a common fungus, Penicillium chrysogenum. The fungus binds shredded polyurethane foam through its mycelium, creating a lightweight, heat-resistant material that performs nearly as well as commercial insulation, offering a sustainable alternative

Shredded mattress waste (left) The waste after treatment. PICS COURTESY/Swinburne University


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Daily, thousands of used mattresses are simply thrown away around the globe. While the steel springs are easy enough to scrap, the bulky polyurethane foam often ends up in a permanent 120-year home in a landfill.

But a new study suggests a bizarrely organic solution to this synthetic nightmare: Penicillium chrysogenum - a common fungus. Researchers in Australia took the discarded foam, shredded it, and inoculated it with fungal spores.

As the fungi grew, their root-like structures, called mycelium, acted as a natural biological glue.

This biological bonding process creates lightweight natural mineral compounds capable of withstanding extreme heat up to 1000°C.

The material performed well as an insulator, with heat-blocking ability very close to commercial insulation products already used.

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