This is my first and subsequent attempts after seeing the technology in Africa. Here I am improvising with a single barrel whilst I look for another smaller barrel to fit inside. The technique is quite simple, I just need the materials for which I will to wait to find. But in this method I jam-pack the wands of olive clippings into the barrel. Normally one would burn these in a pile, but this way I offset the need to get special permission to burn as well as being able to manufacture bio-char at any time in the year. I now have the technique quite well established. One of its added qualities is that it absorbs mositure, and so around the roots of plants it will lock carbon into the soil as well as provide minerals and a pest deterrent. I cook with it everyday. The high temperatures and flameless heat ensure that pans don´t get too black.