> The study acknowledged that there is currently little to no data about long-term exposure of ultra-short chain PFAS like TFA. That's a bit worrying. Althoug

> The study acknowledged that there is currently little to no data about long-term exposure of ultra-short chain PFAS like TFA. That's a bit worrying. Although I don't know how expensive and difficult it would to make sure this would be safe to drink, and what toxicologists need to do to properly test those chemicals. Sometimes I wonder, how do researchers in toxicology try to explore chemicals that have not been tested yet. Most of the time, the company who makes those chemicals have the money to test them, but when they find a problem, they make sure to not tell anyone, and just "advise" to use chemical A or B this way, but not this way. And that's how the roundup problem came to happen, because users were not told to use a moderate amount, because the companies failed to properly warn the public. It guess those small chemicals can't be filtered by carafe/brita filters?