i’m a chemical engineer. i know what tar is.
then it’s weird that you’re saying your grandpa’s tobacco = tar… since tar is just charred material…
i don’t know what “charred material” means, but, as far as i know (and as far as i’ve done more than once at labs), tar is composed of high density hydrocarbons, cyclic amines and innorganic substances, and you can get tar easily by destilling wood and many vegetal parts, like some plants leaves, flowers, etc. it’s not like impurities, it’s just stuff so heavy that you burn and it does not fly away, it forms an aerosol, which is basically smoke.
charred = burned
tar, in the reference that you’re talking about, is just the residue of burned tobacco. but you can get tar from burning a lot of things. either way, it doesn’t matter honestly.
