Tags: Weapon.
Fire hardening also known as fire-polishing is the process of removing moisture from wood changing its structure and material properties by slowly and lightly charring it over a fire. This makes a point like that of a spear or an edge like that of a knife more durable.Pre-historic weaponmakers would rub the end of a selected wood pole against a smooth rock surface until a point was achieved. Then the point was heated in a fire making sure to thrust the point into the coals.