Read as your appliances may become useless

[Jan]

I once read or saw something about a cold store that could be made from chicken wire and coal, but for the life of me I cannot remember were, I've search the web but couldn't find anything, the cold store was in Africa, I think, it wasn't as cool as a fridge but they were able to keep food stuffs and such other things relatively cool.

Has anybody else seen or heard of a similar thing? it may help in SHTF occurrence if we lose power.