So I'm enjoying the pop corn machine thread then it turns to Liquid Death! LOL
Diacetyl is an inhalation hazard, mainly to factory workers and vapers of vape containing it. There was one study that extrapolated a link to Alzheimers, and that study has not been backed up. Alzheimers has touched my family too so I'm not insensitive to it.
But let's stop eating everything that includes diacetyl including Popcorn, Potato chips, Crackers, Corn chips, Chocolate, Cookies, Cocoa-flavor products, Gelatin, Candy, Flour mixes, Syrup with flavoring, Frostings, Chewing gum, Ice cream, Soft drinks, Sauces
Along with processed foods, diacetyl occurs naturally in: Dairy products, Beer and wine, Honey and most fruits, Coffee
And while we're at it, Chlorine causes lung problems similar to diacetyl, better stop swimming in pools.