Forever-chemical butter

CENTRAL ISLIP, N.Y. — A federal court in New York preserved the false-advertising class action brought against the makers of Kerrygold Irish Butter, which allegedly misled consumers about the presence of per- and polyfluoroalkyl substances (PFAS), also known as “forever chemicals,” in the product’s packaging — and which can seep into the food itself. The court says a reasonable consumer would perceive the products as not containing harmful chemicals based on the “Pure Irish Butter” labeling.