black stuff in cigarette filter WTF is this my filters? : r/Whatisthis I opened up a cigarette

I opened up a cigarette from curiosity (I dont smoke) I cut the filter part from the tobacco part and saw the upper bit of the filter had black parts and the Charcoal Filters Are for Suckers High Times Premium Blunt Filters: Smoother Hits, Better Experience Moose Labs why does the filter turn black? when my friends smoke it's just yellow : r Cigarettes TIL that cigarette filters change color not because they are trapping part of the cigarette smoke, but because they are designed to change color to lead consumers to think that they are Why do these cigarettes have a perforation on the filter? : r whatisthisthing

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