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A very old technique I learned camping with my parents
(admittedly not in Sudan) is the use of a food safe, generally hung from a tree with really good
ventilation through it. I have used a modification of this both in Afghanistan where we had no
refrigeration and high temperature, where food (fruit, veg, etc) is placed in effectively plastic
kitchen racks so the food is only one layer deep on each rack, and keep the differing vegetables /
fruits separate. You get good air flow through sides and up through the racks and the foodstuffs stay
fresh for some time.
We use a variant of this in rural Cambodia with a lightweight cloth over the
racks to keep insects off. Some garlic or alliums (spring onions, onions) basil in the racks keeps a
lot of bugs away. In our compound in South Sudan we used the similar idea of a makeshift old fashioned
food safe (steel fine mesh box, painted white with closing door and latch) hung under a shady branch
of a tree with a good breeze flow through it, and again put the fruit / veg in single layers with air
flow from sides and bottom. You can enhance this a little by throwing a wet course cloth (air flow
through) over the safe and wet the cloth before putting on the safe rather than pouring water into the
cloth and safe. Just an idea may be to have two storage boxes. For example onions deteriorate very
quickly if damp whereas leaf crops would likely welcome a damp breeze. Chris