In Brief

Mycelium bricks are lightweight bio-composite blocks made by allowing fungal mycelium to grow through plant-based fibres or agricultural residues. The growing mycelium binds the loose material into a solid form, which is then dried or heat-treated. Mycelium composites may offer useful thermal, acoustic and environmental properties, but most current products are better suited to protected, non-loadbearing applications than to replacing conventional structural brickwork or concrete.