Upon hearing Li Younan's words, the few people who were still immersed in the previous sword forging process snapped back to reality and fished out a sharpening stone.
Li Younan seriously started to fine-tune the sharpening, then smeared the blade with fine charcoal powder from the brazier mixed with water, gently tapping the surface with a hammer to polish it.
This step allows the fine charcoal powder to absorb and remove the oxidation layer.
After Li Younan's efforts, the blade finally exhibited a matte, rust-proof finish. Compared to before, the knife had changed in appearance and was no longer as wide.
Li Younan turned his head to ask Lian Feng, "What were you chopping with the knife to damage it?"
Lian Feng hesitated for a moment, "Um, chopping cow bones."
"Do you still have cow bones?"
"Uh, what are you going to do?"
"Bring it over."
Lian Feng suddenly felt uneasy, "It'll break again."
