Postum (US: /ˈpoʊstəm/) is a powdered roasted grain beverage popular as a coffee substitute. The caffeine-free beverage was created by Post Cereal Company founder C. W. Post in 1895 and marketed as a healthier alternative to coffee.[2]: 93  Post was a student of John Harvey Kellogg, who believed that caffeine was unhealthy. Post Cereal Company eventually became General Foods, then merged to Kraft Foods Inc. in 1990. Eliza's Quest Foods now owns the trademark rights and secret recipe of Postum. The 'instant' drink mix version was developed in 1912, replacing the original brewed beverage.[3] Postum is made from roasted wheat bran and molasses. In addition to the original flavor, coffee-flavored and cocoa-flavored versions have been introduced. Acrylamide When tested by the FDA, Postum had more acrylamide than any other product, by dry weight.[4][5] History Advertisement from 1910 Lost Eyesight through Coffee Drinking — Postum advertisement[2]: 95  Postum quickly became popular, making Post wealthy. The aggressive advertising, with the slogan 'There's a Reason', warned against the alleged dangers of coffee and caffeine, and promoted the benefits of Postum. When imitations appeared, the company introduced a cheaper drink called Monk's Brew that was identical to Postum, but discontinued it after competitors left the market. Instant Postum appeared in 1911.[2]: 93–98  A 1912 advertisement for Instant Postum is the earliest known use of the word 'instant' to refer to a processed food that can be prepared immediately.[6] Although the Post Cereal Company explicitly stated in its advertising that Postum did not taste like coffee and was not a coffee substitute, [7] the drink enjoyed an enormous rise in sales and popularity in the United States during World War II when coffee was rationed and people sought a replacement.[2]: 223  Postum was sometimes marketed by a cartoon ghost named Mr. Coffee-Nerves, [8] who would appear in situations wherein people were shown in uncomfortable life situations (e.g., irritability, lack of sleep, lack of athletic prowess) due to their use of coffee and its negative effects. These cartoons always ended with the afflicted people switching to Postum and Mr. Coffee-Nerves fleeing until the next cartoon.[9] The company sponsored the radio shows Lum and Abner, Beulah and The Aldrich Family, and the radio version of Father Knows Best.