Re: burnt bowl and cleaning
when cleaning my hoses, i use just water, then i pull out the baking soda and lemon/lime juice every now and then, but all you are aiming for when cleaning a hose is getting any dust out.
scrub off the charcoal lines, those 30cent green scrub pads work. if its still there, boil it in hot water then scrub it, make sure not to burn your hands.
and yes, the carbon is harmless, but its better to keep things clean.
"blu mist rulz dawg an that stuff ain't like it an if youz don't agree you bez a shithead yo" - Hajo Flettner