AT THEIR workshop in a Kampala suburb, Lawrence Okettayot and his business partner, both in their mid-20s, drilled holes and screws into a steel-lined, green wooden box designed to dry food in an eco-friendly way.
Their invention, a low-tech thermal dehydrator, can be used to process fruits like mango, banana and pineapple, as well as vegetables such as okra and eggplant, to stop them spoiling.
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