This document summarizes a presentation on communicating the risks of coffee and carcinogens. It discusses California's Proposition 65 law requiring cancer warnings for chemicals like acrylamide in coffee. While acrylamide was listed as a carcinogen, studies show coffee reduces cancer risks. The "coffee-cancer paradox" is that coffee contains trace animal carcinogens but human studies find lower cancer. Antioxidants in coffee may protect against cancer. The International Agency for Research on Cancer reviewed coffee in 1991 and 2018, finding it does not cause cancer and may protect against some cancers. In 2019, California exempted coffee from cancer warnings under Proposition 65 based on this evidence that coffee is not carcinogenic to humans.