Michele Calamaio/AP Show More Show Less 5 of30 Antonio Durbe overlooks the functioning of the "Purosole", Pure Sun, solar light coffee roaster, in Rome, Wednesday, Oct. The machine can roast up to 200kg of environment-friendly coffee per day, with no CO2 emissions and a considerable power saving if compared to traditional roasting systems. Antonio Durbe and colleague Daniele Tummei have spent some six years to create the first solar-powered coffee roaster in the world, which uses a mirror system to convey sun light on the roasting chamber. Michele Calamaio/AP Show More Show Lessģ of30 4 of30 Electronics engineer Antonio Durbe sprays water to cool down the coffee grains at the end of the roasting cycle inside the world first solar-powered coffee roaster at his plant PuroSole in the outskirts of Rome, Wednesday, Oct. No gas, no electricity, just sun rays concentrated by a set of mirrors on a rotating steel basket filled of fresh coffee grains. Two two electrical engineers, Antonio Durbe and Daniele Tummei, invented a plant that just needs a piece of land about the size of half a tennis court and sunny wether to toast up to 50kg of coffee an hour. Michele Calamaio/AP Show More Show Less 2 of30 Daniele Tummei overlooks the functioning of the "Purosole", Pure Sun, solar light coffee roaster, in Rome, Wednesday, Oct.
Two electrical engineers, Antonio Durbe and Daniele Tummei, invented a plant that just needs a piece of land about the size of half a tennis court and sunny weather to toast up to 50kg of coffee an hour. 1 of30 Antonio Durbe, left, and Daniele Tummei overlook the functioning of the "Purosole", Pure Sun, solar light coffee roaster, in Rome, Wednesday, Oct.
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