Jacquet's start-up company, Permafungi, pitches its fully biodegradable "myco-material" as a sustainable alternative to polystyrene and other polluting plastics.
"These ones are designed for hotels," he explained to visitors on a recent tour of the site.
Profitability remains a distant goal: so far Permafungi operates in a niche market, crafting custom packaging for high-end soap makers.
But the 12-person company has built a reputation on the green economy scene in Brussels by recycling grounds from local coffee shops to grow edible mushrooms over the past decade.

