Buy a commercial grade popcorn maker then? Not really economical. Not just what to recommend to be honest. Ignorance is bliss. Heck even the popcorn itself could be tainted through the use of fertilizers and pesticides. Also the corn likely was genetically modified which always means it's bad, right? Heck I know I've been involuntarily exposed to asbestos (someone grinding / cutting asbestos siding) so at best I'm only good for another 40 years before that lung cancer gets me or whatever cancer that runs in the family so I figure I am screwed either way.
Well, I concur the hotdogs, steaks, and aesbestos will give us cancer long before popcorn maker does..
But, it still stands that , if it were avoidable..
hrrrm.. perhaps I could build an aluminum enclosure for the popcorn maker.. although this would be quite difficult to clean.. because oil stains aluminum.