Assertion: incense | /r/HasProperty | free of carcinogen
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text: Regarding your claim that some incenses are free of carcinogens, after reading articles about several of the studies I am unconvinced that all incense--even the most "natural" (I guess Japan keeps getting touted as the place with the "cleanest" incense)--does not contain carcinogenic compounds in its smoke, as a by-product of the combustion of aromatic substances.