Hello. I don't quite understand the underlined sentence.
Does it mean "He smelled of sweat and sulfur and the smell was bitter like scratched metal"?
If so, what's the relation between 'bitter' and 'scratched metal'?
(from A Bird on Water Street by Elizabeth O. Dulemba)
My stomach tied in a knot and I tore away from my classmates to run inside the gate. I
nstead, I hit the wide chest of a soot-covered miner. He was dressed in dark denim overalls,
with a flannel shirt and hard hat. He smelled of sweat and sulfur, bitter, like scratched metal.
It made my teeth ache.
not a teacher
I agree with your interpretation of the passage
Sometimes a metallic taste in the mouth is described as being bitter.