Biosci Rep 32:115 Schaller J-P, Keller D, Poget L, Pratte P, Kaelin E, McHugh D, Cudazzo G, Smart D, Tricker AR, Gautier L, Yerly M, Pires RR, Le Bouhellec S, Ghosh D, Hofer I, Garcia E, Vanscheeuwijck P, Maeder S (2016) Evaluation of the tobacco heating system 2.2 part 2: chemical composition, genotoxicity, cytotoxicity, and physical properties of the aerosol
There's even something called smoked water now, which is basically plain old liquid smoke rebranded with a shockingly high price tag
Passing a minimum smoking age did seem to have some effect in limiting youth smoking in the past
Beside the little normal wear there is no damage to the silver or the gold