Season 2 starts here: how to get iron out of a rock with a clay furnace and a homemade bellows.
Day 14 in Tollan. You have charcoal, and you have iron ore from the riverbank. Blowing on the coals makes them flare for a few seconds, then they fade. To smelt iron, you need a furnace to trap the heat, and a bellows to keep air coming for hours.
The furnace: clay from the riverbank mixed with grit and dry grass, built into a chimney about chest high, with an air pipe near the bottom and a small door for the slag.
The bellows: two hollow tubes scraped out of a rotten log, with plungers skirted in dry grass. Push one down while the other comes up, and the air never stops.
Roast the ore, crush it to the size of a pea, and feed the furnace charcoal and ore for hours. The waste rock melts and runs out as slag. The iron stays behind as a spongy lump, the bloom. Beat it while it's hot, and you have iron.
And far away, someone has seen your fire...
Episode 10 of Isekai Engineer: Fantasy Survival Guides.
Missed Episode 9? Watch how to make charcoal first.
Next episode: How to Forge an Iron Knife.
All my links: https://isekaiengineer.com
#isekai #survival #bushcraft #animation #primitivetechnology #howto #fantasy #smelting
