Solar food dehydrator
Solar energy is commonly used to produce hot water or electricity for our buildings. Another, lesser known use is for drying food.
Food preservation is a particularly important issue in the third world where cooling systems are scarce and electricity supply unreliable. The use of local, low-cost, renewable energy is an extremely clever solution for these countries.
There are different models of solar dehydrators.
In the first two cases, there is a risk of overheating and food degradation, including the destruction of vitamins A and C by direct sunlight.
This project uses instead the indirect solar dryer technology. Although more complex to build, it offers many advantages:
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