Coke Changed Caramel Color To Avoid Cancer Warning; Pepsi In Transition

[KMUW] In 2011, the state of California created a problem for the soda industry. The caramel color that Coke and Pepsi used to give colas that distinctive brown hue contained a chemical, 4-methylimidazole — 4-MEI — that is listed as a carcinogen by the state. Read More