Solar coffee roaster (using a Scheffler concentrator)
It is about a coffee roaster that works with solar energy. The solar energy is collected by a Scheffler concentrator, a very good open-source technology, used since a while worldwide to cook. [http://www.solare-bruecke.org/index.php/en/die-scheffler-reflektoren This page explains the working principle of the Scheffler concentrator.]
The solar energy enters directly in the roaster, where the beans are placed. We can roast coffee beans (around 230°C), cacao beans (around 160°C) and even make pop-corn !…
''Translated from French by Armenia Siladi.''
''Note: [http://beta.wikifab.org/index.php/Torr%C3%A9facteur_de_caf%C3%A9_%C3%A0_%C3%A9nergie_solaire_(pour_concentrateur_de_Scheffler) La version française de ce tutoriel est disponible ici ! / the French version is here :)] ''
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