For Roger Horowitz, author of the new book Kosher USA: How Coke Became Kosher and Other Tales of Modern Food, these debates were personal: his own family was split on the vexed question of whether sturgeon was fit and proper. Through the stories of how Coca-Cola became kosher, how Jell-O became treif, or non-kosher, and how the first kosher label was invented, we see how Jewish life has adapted to industrial food, and how industrial food helped shape American Judaism in return. His new book, Kosher USA: How Coke Became Kosher and Other Tales of Modern Food, covers much more than we could in this episode, including how Manischewitz wine became the first kosher product to win over non-Jewish customers and the challenges encountered by the kosher meat business.