Primitive Smelting: Build a Small Clay Tatara Furnace An Intro w/ Wayne Potratz & The Urban-Abo

In September 2019 I took a class titled, Viking-Age Smelting: A Contemporary Approach to Iron-Age Technology at the North House Folk School in Grand Marais, MN...with instructor, and metallurgical artist, Wayne Potratz ( IronWain.com).

Using a brick and clay version of a "Tatara" furnace (鑪), this is the progression: From making a compacted charcoal bed...to feeding raw iron-ore every 10mins over 7 hrs...periodically releasing slag flow...to uncovering a "bloom" of raw white-hot metal...to checking how bits of raw cooled molten metal sparks...to weighing a tiny fraction of what we yielded (12oz) which could be forged into a blade or other tool.

VOCABULARY:
tama - 玉
hagane - 鋼
Tamahagane (玉鋼) - "gem-steel"
iron sand (satetsu)
akome satetsu (赤目砂鉄) - iron sand (low quality)
masa satetsu (真砂砂鉄) - iron sand (higher quality)
ノロ - noro - slag

LINKS:
en.wikipedia.org/wiki/Tatara_(furnace)
en.wikipedia.org/wiki/Wootz_steel

www.japanesesword.com/tatara
http://www.ritsumei.ac.jp/~yamasue/tatara/project_en.html
https://www.hitachi-metals.co.jp/e/tatara/index.htm
www.inaba.nims.go.jp/movie/tatara/English.html
www.doorcountyforgeworks.com/Wootz.html
www.IronWain.com

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