I increase the effective surface area of some charcoal by ~50X Bog iron smelt: https://www.youtube.com/watch?v=4A2V6t0qg44 Previous attempt: https://youtu.be/WbCjPLGcM_k Help me make videos by donating here: https://www.patreon.com/CodysLab Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/ Twitter: https://twitter.com/CodysLab