Parchment paper does not release any toxins when it's heated.
Parchment paper is coated with a food safe and non toxic silicone, which is made to withstand high temperatures.
The silicone lining of the parchment paper is food safe and does not release any toxins or harmful chemicals when it's heated properly.
Although some older parchment papers may contain PFAs or forever chemicals that can be harmful.
But modern brands of parchment paper don't contain the PFAs or forever chemicals and you can check the label of the parchment paper to see if it's PFAS free.
Do not use the parchment paper in direct contact with flame, as direct contact with flames can cause the parchment paper to catch fire and release smoke.
It's crucial that you use the parchment paper within the recommended temperature range which is between 420 F to 450 F.
When used properly, the parchment paper is very safe to use and will cause no harm or leech any chemicals into food.
Parchment paper is food safe and non toxic and is designed to be heated to a certain temperature.