“He Built a GRATE FURNACE From Mud & Sticks – Then Melted IRON With Just Wood Fire (Game-Changing 2025 Experiment!)” First time ever: he added a raised clay grate inside the furnace → created forced draft → hit temperatures so high the iron actually started MELTING instead of just blooming! No bellows, no charcoal, just hardwood on a simple grate turning a normal clay furnace into a wood-fired smelting monster 🔥 This 2025 Primitive Technology experiment just rewrote what we thought was possible
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“He Built a GRATE FURNACE From Mud & Sticks – Then Melted IRON …
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