How to preserve and keep food fresh using a zeer pot clay fridge

In the heat of Sudan, food doesnt stay fresh for long. One ingenious solution is the zeer pot: a simple fridge made of local materials. It consists of one earthenware pot set inside another, with a layer of wet sand in between. As the moisture evaporates, it cools the inner pot, keeping produce fresh for up to three weeks. Since 2001, Practical Action has been helping local people to make these life-saving refrigerators.

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