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Canada: beer dregs mixed with coffee grounds to cultivate mushrooms and promote circular economy

Published: 2025-12-05 Author: World Gafei

Last Updated: 2025/12/05, For the exchange of professional baristas, please follow the coffee workshop (Wechat official account cafe_style) Blanc de Gris mushroom farm in Montreal, Quebec, Canada. The mixed culture medium of coffee grounds and beer grounds is used to cultivate Pleurotus ostreatus, Pleurotus eryngii and other varieties. According to the founder, Ms. Roy, the mushroom farm insists on recycling, so as to reduce cultivation costs and promote environmental sustainability.

For professional baristas, please follow the coffee workshop (Wechat official account cafe_style)

The "Blanc de Gris" mushroom farm in Montreal, Quebec, Canada, uses coffee grounds and beer grounds to produce culture medium for Pleurotus ostreatus, Pleurotus eryngii and other varieties all the year round. According to the founder, Ms. Roy, "the mushroom farm insists on recycling, so as to reduce cultivation costs and promote environmental sustainability. Every week we harvest 200kg fresh mushrooms, which are sold to nearby high-end restaurants. Share our value with diners. "