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heat retention cooking vs. solar cooking having read all the inputs on why solar cooking has not been accepted. sunseed has been working in central tanzania for 5 years trying to introduce solar cooking. a few people are still using cookits made locally from plywood - locally produced - and gift wrapping paper - very cheap. total cost for materials about $5. we have come to the conclusion that the reasons for this low take up include some or all of the following:
last year we went back to run a pilot project offering to teach and support the use solar cookers of various designs, improved charcoal and firewood cookers, and the haybox concept - we had come across this idea built into a locally make basket or kikapu. we demonstrated them all but at once and at each demonstration to people who had had no contact, they all said this is what we want to try. our 2 month pilot in a rural village and 3 wards of a large town was very successful and when we left there were 50 teachers of wonderbasket making and cooking and over 200 families using them. in this short time we had achieved more than we had achieved over 4 years. why?
one woman told us the fights had stopped since she got a wonderbasket. - if the food wasn't cooked they could light a fire and complete the cooking - they could keep cold drinks cold. note that i haven't once mentioned the environment, but i am sure this is the real motivation of those of us who advocate solar cooking and other improved cooking methods. residual heat cookers save 50% of fuel. as much as solar cooking will in practice in the tropics - in california you have much longer days than in tropical countries and less cloud. these women in tanzania are saving nearly half a tonne of charcoal a day - a good sized tree! mike bridgwater you can here an interview with mike bridgwater here.
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