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Twice a week the Espresso Mushroom Company collects around 200 kilograms of used coffee grounds from up to 10 cafes in the English seaside town of Brighton. Those coffee grounds are then taken to a farm, where they are used as compost to grow mushrooms. euronews knowledge brings you a fresh mix of the world's most interesting know-hows, directly from space and sci-tech experts. Subscribe for your dose of space and sci-tech (every Monday, Wednesday and Friday) http://www.youtube.com/subscription_center?add_user=euronewsknowledge Made by euronews, the most watched news channel in Europe.