Plastic has been the go-to material for almost everything for decades, but we’ve all seen the mess it leaves behind. The search for a decent alternative has led scientists to a bit of an unlikely hero: the humble mushroom. It turns out that the root system of fungi, known as mycelium, is a bit of a wonder material that can be grown into almost any shape you need.
Instead of pumping out chemicals in a factory, companies are now growing packaging, insulation, and even furniture in a matter of days. It’s a bit of a game-changer because these materials are tough, fire-resistant, and—most importantly—they’ll happily rot away in your compost heap once you’re done with them. We’re looking at a future where your next delivery might show up protected by mushrooms rather than polystyrene.
Mycelium packaging is already replacing polystyrene in real supply chains.
The white, thread-like root structure of fungi, called mycelium, can be grown around agricultural waste like corn husks or hemp stalks inside a mould, and what you end up with is a firm, lightweight, fully biodegradable material that performs almost identically to expanded polystyrene foam. Companies like Ecovative in the US and MYCO in Europe are already producing it commercially, with pilot programmes running in the Netherlands and Germany and expansion into North America planned for 2026. It breaks down in a home compost heap within weeks rather than sitting in landfill for thousands of years, which is the part that makes it genuinely significant rather than just interesting.
@theaaronmurphy Sustainable Mushroom Packaging Replaces Styrofoam! #sustainable #banplastic #compostable #regenerative #mushrooms #replaceoil #climatechange #greenscreen ♬ Sia – Xeptemper
A turkey tail mushroom coating could replace plastic food wrap.
Researchers published findings in late 2025 showing that mycelium from the turkey tail mushroom, combined with cellulose nanofibrils from wood pulp, creates a thin film that repels water, oil, and grease effectively enough to coat food packaging materials. The coating is food-safe, non-toxic, and fully biodegradable, and the team behind it specifically designed it as a replacement for the plastic lining inside paper cups and food containers that currently makes them impossible to recycle. It’s one of the more practically useful developments because it targets a problem that has frustrated the packaging industry for years.
Mycelium building materials could replace plastic-based insulation.
Expanded polystyrene is one of the most widely used insulation materials in construction and one of the most environmentally damaging, taking thousands of years to degrade and releasing toxic chemicals throughout that time. Mycelium-based alternatives are being developed in the Netherlands and elsewhere that match its insulating properties while fitting into a fully closed-loop system. A project from Newcastle University has also been developing a mycelium blend called mycocrete that behaves like a lightweight form of concrete, suggesting the applications in construction go well beyond insulation.
Mushroom buoys are replacing polystyrene foam in the fishing industry.
A Maine-based startup called MycoBuoys has developed fishing buoys grown from wood-rotting fungi and hemp that float effectively because mycelium has naturally evolved proteins that repel water. Eleven aquafarms in the northeastern US are now trialling them, and the timing is significant because South Korea banned marine buoys made from Styrofoam from 2025, with similar bans being pushed for in Canada. When mycelium buoys eventually break down, they can be used as fertiliser on land rather than fragmenting into microplastics that enter the food chain through marine wildlife.
Mycelium leather is moving from prototype to product.
Several companies are now producing leather alternatives grown from fungal mycelium that closely replicate the texture, durability, and appearance of animal leather without the environmental cost of livestock farming or the toxic chemicals involved in conventional leather tanning. Bolt Threads and Ecovative have both developed versions, and major fashion brands have been quietly testing the material for accessories and clothing. It biodegrades at end of life rather than persisting in landfill, and the production process uses agricultural waste as its feedstock rather than depleting other resources.
@climate_insiders 🌍 Fungi Fighting Plastic! 🍄 There’s a new hero in the fight against plastic pollution: a fungus that eats plastic! This strain can break down polyethylene, offering a potential game-changer for waste management. 🌿 👉 Do you think fungi could revolutionize plastic waste management? Share your thoughts! #EcoInnovation #PlasticWaste #climateinsiders #climatechange #sustainability #climate #climatetech ♬ original sound – Climate Insiders
A living mycelium material developed in 2025 could work in electronics.
Swiss materials scientists at Empa published research in 2025 on a living material derived from the split-gill mushroom that can form both a plastic-like film and a stabilising emulsion. What makes it particularly unusual is that it becomes more stable over time rather than degrading immediately, and it responds reversibly to moisture changes in ways that could make it useful as a biodegradable moisture sensor in electronics. The researchers suggested it could also be used to make bags that actively compost the organic waste inside them, using the fungus’s natural ability to break down plant material.
Mycelium coolers are replacing plastic foam in the seafood industry.
The Centre for Alaskan Coastal Studies identified Styrofoam as the biggest contributor to marine debris collected at community clean-ups, and has been working with a two-year project funded by the National Oceanic and Atmospheric Administration to build mycelium coolers as a direct replacement for the foam plastic boxes used to transport fish. The coolers match the insulating performance of polystyrene and are being built locally from agricultural waste, which also reduces the fuel costs and emissions involved in shipping heavier alternative packaging materials from elsewhere.
The global mycelium materials market is forecast to reach £5 billion by 2032.
What was a niche research area a decade ago is now attracting serious commercial investment and regulatory tailwinds in the form of plastic bans and packaging taxes that are making conventional materials increasingly expensive to use. The EU, the UK, and several other governments have set targets around compostable packaging that mycelium materials are well positioned to meet, and the fact that they can be produced using equipment already used for conventional polystyrene moulding significantly lowers the barrier for manufacturers to switch. The commercial momentum behind this field is now substantial enough that it’s no longer a question of whether mycelium materials will reach mainstream use, but how quickly.