Perfect opportunity to display and show my improved biochar making stove. Many people came along and were able to grasp the basic concept by watching it happen.
At the beginning a shallow square pit is dug out, as big as the corrugated sheet that was gathered to cover it at the end of the process. A small fire gets started in the center of the pit, using the most dry pieces first then adding whatever other pole, even the most wet ones.
As the fire grows bigger, all the humidity of the bamboo boils out in steam. Several loud sounds like gunshots happen as the bamboo sections crack open in the fire...
On the side of this ancient practice, I laid down my stove set explaining the main features and the substantial difference of approach: (1) trying to have the cleanest emissions as possible, (2) trying to reduce the ashes to zero (meaning no waste of biomass) and (3) use the energy of the process to cook or to heat water.
My hand made Elsa-stove replica worked quite well, standing on the side of the pit attracting the interest of everybody, being obviously something completely different.
Still life with biochar: on the lower right corner the bottom of the stove is upside down, showing the hexagonal pattern that I chose to make... improving a lot since the very first test. Now getting ready for sizing it up ;)