Polystyrene Packaging: Mushroom Mycelium Packaging May Be the Solution

Expanded polystyrene (EPS), commonly used in takeaway containers, coffee cups and packaging, is cheap, light and convenient. But it’s also one of the most persistent forms of plastic pollution in our oceans.

EPS doesn’t readily decompose. A single foam container can linger in the environment for centuries, slowly breaking into smaller and smaller pieces.

Some EPS, like bean bag fill and craft beads, starts out as microplastic. Other forms fragment over time into microplastics that travel easily by wind or water, polluting waterways and entering marine food chains.

Wildlife often mistakes these fragments for food. Sea turtles, seabirds and fish are especially vulnerable, leading to internal injuries, blockages or starvation.

Recycling EPS is also problematic. Most kerbside programs in Australia don’t accept it due to contamination risks and the high cost of processing.

EPS is being phased out in several Australian states under single-use plastic bans (source). It’s time we move towards smarter, biodegradable alternatives, some even inspired by nature, like fungi-based packaging or worms that can break down foam.

A Natural Alternative: Mycelium Packaging

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What if we could grow packaging, instead of producing it with fossil fuels?

Mycelium is the root-like network beneath mushrooms. When combined with agricultural waste like hemp husks or corn stalks, it grows into mouldable, durable shapes within 5 to 7 days. The result? A packaging solution that is:

• Home compostable

• Low-energy to produce

• Made from renewable waste

• Safe for humans, animals and ecosystems

• Naturally shock-resistant and insulating — just like polystyrene

Why Is Mycelium Better?

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Mycelium packaging fits perfectly into a circular economy — one that reuses, regenerates and respects natural systems.

Who’s Already Using It?

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Leading companies around the world are already turning to fungi:

• Dell has replaced foam laptop packaging with mycelium alternatives.

• IKEA is trialling it for flat-pack furniture as part of its zero-waste goals.

• Grown.bio (Europe) is creating mycelium insulation panels and even lampshades.

This shows mycelium is not a far-off concept — it’s a scalable, real-world solution already in action.

What Can We Do?

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You don’t need a lab to create change. You can start at home, at school or at your local café.

Here’s how you can help:

• Talk about it! Share this knowledge with others.

• Refuse polystyrene: Ask for compostable or reusable alternatives.

• Educate: Set up a school display or do a project on sustainable packaging.

• Support eco-conscious businesses: Choose local shops using compostable packaging.

• Write to your council or MP: Advocate for bans on harmful single-use plastics and support sustainable innovation.

Did You Know?

📌 Polystyrene makes up around 30% of landfill volume globally.

📌 Mycelium packaging breaks down in just 30 to 60 days in your home compost.

📌 Australia generates 68,000 tonnes of expanded polystyrene waste every year — most of it ends up in landfill or the ocean.

A Cleaner Future Starts with Smarter Materials

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By supporting and demanding sustainable solutions like mycelium, we are saying:

• Yes to healthier oceans

• Yes to smarter packaging

• Yes to a future powered by nature, not plastic

We don’t need more plastic foam. We need materials that grow, break down and return to the Earth — just like mushrooms.

Let’s switch from petroleum to plants, from pollution to possibility, from polystyrene to mycelium.

References

• Meyers. Mycelium Packaging Applications & Mushroom Packaging. Read here

• Grown.bio. Packaging from Mycelium – Change Inc Article. Read here

How to get involved

There are many ways we can all contribute to the global effort for cleaner oceans! Contact us here to find out how you can get involved on our mission for cleaner oceans.

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