I briefly mentioned my solar dehydrator project in a
previous post. Now that this project has been wrapped up, here's a little more detail.
Having lived most of my life in temperate climates, I'm used to the idea of seasonal fruits and veggies, and the need to preserve produce in order to have something tasty to eat in the winter. Sure, NAFTA eliminates some of that need, but preserving food is still an important part of American culture.
During the first few months in Ecuador, I quickly realized that food preservation is very rare here. Before refrigeration was widely available, meat and fish were smoked or dried to extend the bounty of a hunt for up to a month. Now, even if a family doesn't own a fridge, the store down the street that sells chicken probably does. So few people preserve meat anymore.
Although food preservation isn't common, there are some products that need to be dried as part of the processing. Cacao, coffee, and plantain (for grinding into flour) are the most common.
At the school farm, the teachers were experimenting with designs to accelerate the drying of cacao and improve the quality (mold and flies are very common when sun-drying cacao).
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Version 1.0 of the solar dehydrator. |
The first design they came up with had a lot of good qualities:
-Made from recycled/free materials
-Improved airflow below cacao compared with sun-drying on a tarp
-Easy to use