Materials From Mycelium

Growing instead of manufacturing

Most materials we use, like plastic or metal, are manufactured in factories using heat, chemicals, and a lot of energy. But what if a material could simply grow itself?

That is exactly what happens with mycelium, the tangled network of thread-like fungal cells called hyphae. Given the right food, moisture, and warmth, mycelium can spread through almost any material, from sawdust to old crop waste, weaving it all together into a solid, spongy mass. Designers and engineers have realised that if you shape and dry that mass at just the right time, you get a brand new material, grown rather than made, using a living organism as the builder.

Mycelium "leather"

One exciting use of mycelium is as an alternative to animal leather. When mycelium is grown in thin, flat sheets and then treated and dried, it can end up feeling surprisingly similar to leather: flexible, strong, and with a natural texture. This mycelium material can be used to make things like bags, shoes, and wallets, without needing to raise animals for their hide.

It is also biodegradable, meaning it can naturally break down over time instead of sitting in a landfill for centuries the way many plastics and synthetic materials do. Several fashion and design companies are already experimenting with mycelium leather in real products, working out how to make it durable enough for everyday use.

Packaging that replaces plastic foam

You have probably seen white foam packaging used to protect fragile items like televisions or glass jars during shipping. That foam is usually made from plastic, and it can take hundreds of years to break down in nature.

Some companies now grow mycelium packaging instead. They mix fungal spores with leftover farm materials, like corn husks, then pack the mixture into a mould shaped exactly like the item that needs protecting. Over about a week, the mycelium grows and binds everything into a firm, custom-fitted cushion. Afterwards, it is dried to stop further growth. Unlike plastic foam, this packaging can be composted at home, turning back into soil-friendly matter instead of waste that lingers for centuries.

Bricks, and a green factory of the future

Researchers have even experimented with mycelium bricks. By growing mycelium through a mix of materials like straw or wood chips inside a brick-shaped mould, then drying it, they can create a lightweight block that is surprisingly strong and a good natural insulator, meaning it helps keep buildings warm or cool. These bricks are still being tested and improved, but they hint at a future where some buildings might be grown almost as much as they are built, using far less concrete and fewer bricks fired in energy-hungry kilns.

What makes mycelium materials so exciting is that growing them uses far less energy than manufacturing plastic or leather, and they can often be made from waste that would otherwise be thrown away. Scientists and designers are still learning how to make mycelium materials stronger and easier to produce at a large scale, but this fungal "green factory" shows how looking closely at nature can inspire genuinely new ways to make the things we need.