"Ding ding ding..."
Jiang Xuan knocked a few times with two pieces of charcoal, the sound was very crisp.
Jiang Xuan nodded with satisfaction and said, "Not bad, all good charcoals."
Afterward, Jiang Xuan and his people moved all the charcoal out of the earth kiln and packed them into woven bags made of bark.
Next is the second step of smelting bronze, building two smelting furnaces, one for refining Copper Ore, and the other for refining Tin Ore.
Due to limited conditions, Jiang Xuan planned to build the simplest vertical smelting furnace.
A vertical smelting furnace essentially looks like a large chimney, with an air inlet at the bottom and an open top, making it very easy to construct.
Building a smelting furnace directly in the cave is a foolish act. Not to mention the lighting problem, just the smoke and various toxic gases produced by smelting can suffocate people.
