I was boiling something and I left them on the stove for about 1 hour. The pan was full and starting to boil at the start of the time, and when I got down and realised it was totally empty. The gas was on full heat, and since it's gas it does get really quite hot. There is still fumes 3hrs later - I don't think the brand was Teflon, but would it still have been using the same material? And basically, should I be worried, or is most of the internet stuff mostly scaremongering?
Hope this isn't too off-topic!