Coffee is one of the main exported product of Peru. At the Granja Ecologica in Huyro, Peru, students and professors from the PUCP University have developed different low tech tools. In this region where coffee is being grown, they created a coffee solar roaster using a cement mixer. Designed for the use of a family or a community more than for an industrial use, this roaster can roast 4kg of coffee within 20 minutes. It allows the communities living in coffee plantations to consume their own production, while controling the process of making coffee. Thus, these communities do not have to buy coffee sold on the market, which is usually roasted and packaged on the other side of the world.
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