There was a study done. While bongs do reduce carcinogens, They also reduce THC. Study showed that besides the vapor method, Straight shots like a joint or blunt give the best THC/Carcinogen ratio. Followed by bowls then bongs(which I thought, was a bubbler).
I believe you can find this one on erowid. Link here(scroll to the bottom about waterpipes)
MAPS/CaNORML vaporizer and waterpipe studies
:jointsmile:
Zcomp Reviewed by Zcomp on . Best Method of Smoking between Bongs, Bubblers, and Blunts Im just curious to see all of your opinions. I want to say Bongs are but i just feel that bluntz are the best because they last so long and can get anywhere between 4-8 people high. just post which method you think is the best and why... Rating: 5