Yeah the biomass I was using... was really not ready, I mean not perfectly dried so I had to put again in the stove those that hadn't already turned into biochar and repeat the whole process. Maybe then if we need the vinegar, this is the kind of biomass to use then!
Here there is that one drop that slowly dripped and condensed all together: it would be good getting organized for a proper collection of this extract. I have been told that, highly diluted it can be used as an effective insect repellent in the garden. Looking forward to try... next time!