There are very many sustainable food cooking technologies.
Here are some examples.
Aprovecho Reseach Center and Shengzhou Stove Manufacturer won The Energy Champion Award at the Ashden Awards for Sustainable Energy in 2009. The Aprovecho Research Centre in the US and Shenghou Stove Manufacturers in China have pooled their rich experience and skills to produce a cheap, robust and efficient stove for mass production to developing countries.
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