PermaFungi is an urban agriculture and circular economy project based at the Tour & Taxis site that collects coffee grounds from around Brussels to grow delicious organic oyster mushrooms in! Far from being a mere waste product, coffee grounds are in fact ideal for growing this type of mushroom. This method allows PermaFungi to produce 400kg of mushrooms per month whilst making use of something that would otherwise go to waste. PermaFungi also sells kits that let you recycle your own coffee ground and produce oyster mushrooms at home, as well as organising workshops enlightening people on this method and the concept of urban resiliance.

Check out their website