100 Wasn't it formaldehyde that went missing from that train weeks ago? (twitter.com) posted 1 year ago by CanadianPedeMan1571 1 year ago by CanadianPedeMan1571 +101 / -1 30 comments share 30 comments share save hide report block hide replies
Opening expired diet soft drinks would do that. Aspartame breaks down into formaldehyde. That's why expired diet drinks taste bad.
There was also formaldehyde in the paneling in a lot of mobile homes a long time ago. Burning a lot of them might release some.
There are a lot of possible sources for that common chemical.