Many researchers are concerned about Keralas carbon foot print .and are devising means and processes to reduce it. One group proposed the popularization of Hot Boxes in the kitchens of Kerala. A hot box (for the novice) is a box with with an opening large enough to support a cooking pot. The box needs precooking preparation. First step is collecting the suitably dry biomas from own the backyard or others. Then chopping it to some sort of uniform size. This is ready for stuffing the HB now. Fill the HB tightly with biomass. Now the HB is ready for starting a cooking process. Light the biomass, and it will burn without any open flame. Place the pot with the half or partly cooked food stuff over the hot box. Further cooking will take place with out much of assistance of attending. The expectation is that such a HB will reduce the carbon foot print
A claim is made that the “Parishath Aduppu” is a great success. However, the design reduces the spread of smoke inside the kitchen by adding an exhaust stand pipe (generally recommended is a readymade AC pipe- opening over the roof. The success claimed in the proposal is not supported by a life cycle study of this “aduppu” anyway.