Veritasium
3 HN recommenders · recommended in 7 months, 2025–2026
54:08 · 37M views · May 14, 2025
Veritasium investigates PFAS forever chemicals, from Teflon's history to pollution of the global water system and their presence in the US population. It covers the corporate cover-up and the host's own blood tests.
Recommended as a good, accessible explanation of PFAS, its low safe limits and why regulation matters.
8 comments from Hacker News
Based on his video, I have given up eating microwave popcorn and have gone back to stove-top made. If his numbers are to be believed (and I do), the coating on the inside of a microwave popcorn bag that is used to keep the cooking oils from soaking into the paper emit PFAS chemicals. Which leach into the popcorn oils - later to be consumed by you. In the chart comparing them with other coated papers such as fast food burger wrappers, they are far and away the leading source of PFAS. I still have questions - do the PFAS chemicals leach into the oils while sitting on the store shelf, or are they emitted when they get heated up in the microwave and exceed some temperature (like getting a Teflon pan too hot)? Not that this makes a difference in the end result, but I am curious. Video link: this video
If you want more context on PFAS, I recommend this Veritasium video [0]. It expanded on my usual thought of "PFAS = bad," explaining why non-stick cookware is probably fine while other forms of PFAS are problematic. The video also covers the environmental damage caused by PFAS manufacturing. [0]: this video
If you want a good explanation of PFAs, Veritasium did a video on it. this video The safe allowable ppm counts are insanely low for this shit.
The toxicology of soluble heavy-metal bioavailable material is a well understood area of research, and can bioaccumulate in humans several times higher than background if a food chain allows biomagnification of a contaminant. The publication assumes the reader has first year biology, and will understand test subject mortality data implications. I would recommend studying the story of Polychlorinated biphenyls in whales, Mercury levels in salmon, and PFAS in the Veritasium hosts blood. this video "Particle Accelerator vs Egg" is a great demonstration of purely irradiated cell decomposition, and is great entertainment for all ages. =3 [LINK]
Fully agree with you, however eating small bits of PFAS from pans seems to be pretty non toxic. Even in the recent Veritasium video about it they said that unless the chemical was heated to above ~300 degress C if will pass through the human digestive system without causing any harm. this video