Blanc de gris 2.0 – Circular Urban Mushroom Farm: Valorization of Organic By-Products for the Production of Edible Mushrooms With High Added Value

In Montreal and many other Quebec cities, the majority of organic waste ends up in landfills, which generates significant environmental, economic and social impacts, including the production of GHGs and the waste of resources, energy and money.

The Circular Urban Mushroom Farm project aims to create value with coffee roasting, beer brewing and woodworking by-products by diverting them from landfills and turning them into delicious, fresh and healthy mushrooms. The goal is to completely eliminate this waste by transforming it into useful products through the development of an innovative commercial myciculture process, which is based on several R&D projects and gives a second life to these residual materials.

Once the second phase is completed, this project will aim to recover more than 160 tons of organic waste generated in Montreal each year and produce more than 40 tons of mushrooms that will be consumed locally. This model could then be replicated in other cities across Canada.

In this context, a collection and recovery service such as that of Blanc de gris is a value-added outlet for these materials.