YSK The build-up of black soot on the bottom of your pots and pans is not normal. It can be a sign of excess carbon monoxide.

YSK The build-up of black soot on the bottom of your pots and pans is not normal. It can be a sign of excess carbon monoxide.

YSK The build-up of black soot on the bottom of your pots and pans is not normal. It can be a sign of excess carbon monoxide.
from /r/YouShouldKnow