Why mycelium will quietly replace foam.
Journal
Future Materials·Issue 04·March 2026·4 min read

Why mycelium will quietly replace foam.

A new generation of biomaterials is rewriting one of the most stubborn assumptions in modern manufacturing.

For decades foam has been the default solution for packaging, insulation and protective transport.

It is lightweight, cheap and effective.

It is also one of the most environmentally persistent materials ever created.

A new generation of biomaterials is challenging that assumption.

"The future of packaging may not be produced. It may be grown."

Mycelium — the root structure of fungi — can be grown into precise shapes and densities. Instead of manufacturing protective packaging from petrochemicals, companies can cultivate it using agricultural waste and biological growth processes.

The result is a material that performs similarly to traditional foam while dramatically reducing environmental impact.

The shift may not happen overnight.

But like many material revolutions, it will happen quietly.

One product category at a time. One supply chain at a time. One manufacturer at a time.

The future of packaging may not be produced. It may be grown.

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