12/11/2025
In Belgium, disused rail tunnels beneath city streets have found a second life as quiet mushroom farms—dark, cool, and perfect for growing fungi. What was once a forgotten part of urban infrastructure is now producing food and opportunity, thanks to a project that employs former homeless individuals to tend to the crops. These underground farms offer more than just fresh mushrooms—they offer steady, meaningful work and a space of calm below the hum of city life.
The tunnels maintain the ideal environment for growing oyster and shiitake mushrooms without the need for artificial cooling or excessive light. Shelves made from recycled pallets line the walls, holding bags of composted straw or coffee grounds seeded with spores. Low-energy LED lights provide brief cycles of illumination to support growth, and humidity is managed naturally or with minimal equipment.
Workers handle planting, monitoring, and harvesting in shifts that are quiet, stable, and well-suited to those recovering from life on the streets. The environment is therapeutic—cool, consistent, and free from the overstimulation of busy public spaces. Training is provided on site, and many employees use the job as a bridge toward long-term housing or other employment.
Produce from the tunnels is sold to local markets and restaurants, creating a self-sustaining loop that transforms waste, space, and lives at once. Belgium’s tunnel farms show how cities can cultivate both food and dignity in the spaces they used to overlook.