- New research has uncovered 68 (PFAS) “forever chemicals” in food packaging — including plastic, paper and coated metal | Used by manufacturers for decades in products that are used everyday, more than 12,000 of the human-synthesized chemical compounds are known to exist, according to the study. https://pubs.acs.org/doi/10.1021/acs.est.3c03702 162 comments science