Despite many challenges in creating this new solar coffee roasting system, the new roaster went into operation in the first quarter of 2008. It was capable of producing up to 30 pounds of coffee at a time, with a batch taking around 20 minutes. This enormous roaster uses a movable wall of mirrors to
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focus sunlight onto a receiverbox, which heats air to several hundred degrees.This heated air is then ducted into the solar roaster. In addition, the new roaster is outfitted with a conventional propane heat source to assist when needed, particularly on cloudy or extremely cold days.
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