Raudanvalmistus
Raudanvalmistus refers to the historical and traditional process of iron production, particularly in Finland and its neighboring regions. This method involved smelting iron ore in a bloomery furnace, a relatively simple type of furnace used in pre-industrial times. The primary goal of raudanvalmistus was to extract metallic iron from iron-rich materials like bog iron ore or lake ore.
The process typically began with the collection of raw materials. Iron ore, often found in bogs and
Once the furnace was filled, it was heated to high temperatures, typically using bellows to supply air
After smelting, the bloom was removed from the furnace and repeatedly hammered and heated to consolidate the