This is the certificate documenting a workshop and biochar deposit happened during Yamauto matsuri 2013, not far from Kyoto in Japan. The workshop was held on the side of a conventional bamboo charcoal making workshop: many people stopped by, checked the stove and the whole process of pyrolisys.
In the picture below, also some of the participants at the workshopDate
05 sep 2013
Location
Yamauto matsuri, near Kyoto, Japan
Amount
50 grams
Notes
source: wooden twigs, used chopsticks;
produced on Elsa replica by dry choke quenching.
Deposited by
0001