Thanks Dave,
I've downloaded the article and it should be simple enough for me to put together. Definitely not for the Industrialised World but with a plentiful supply of coconut shell charcoal and fine wire mesh I think it will work well. Might me useful in outback Aus or some similar locations but not for spoilt energy-hungry Townies.
I will have to do some research on the temperature and RH in the cooler and publish the results with some pics. It is basically a box shaped frame of 2" X 2" timber with fine wire mesh inside and out. The spaces around the four sides and packed with pieces of charcoal and then sprayed with water. The wind blowing through in a shady location causes the chilling by latent heat of evaporation. The RH and drying of the Salami will be the critical factor. Might take several weeks to get some results but I'm game. Just off to stuff another 5 kg of salami and put it in the energy-hungry gas fridge.
All the best,
Vernon