Once again, another new-bee question.
 
My friend who introduced me to this fascinating hobby has always used
rolled up cardboard for his smoker fuel,  and one to not mess with success
(and convienience), I have started using it in my smoker.
 
Recently, during a conversation, it was mentioned that many producers are
treating the cardboard with chemicals (Glue for bonding, Water resistance,
reduce deterioration, etc).
 
My question, Has anyone seen detrimental consequences in relation to using
cardboard as smoker fuel?
 
Many Thanks
 
Rod Billett
Columbia, SC, USA