Germany is still a laggard when it comes to the approval of biochar. Cur­rent­ly, it is only per­mit­ted in the form of char­coal with a carbon content of at least 80 percent. Tech­nol­o­gy has been avail­able for a long time to produce biochar free of harmful sub­stances. Quite the oppo­site of bar­be­cue coal pur­chased from the DIY store, which far exceeds the limit values for car­cino­genic substances.

Orig­i­nal article (German): Pflanzenkohle als Düngemit­tel (Biochar as fertilizer)
Author: Rebecca Hillauer
Pub­lished in: Deutsch­land­funk 2015