William H. Ukers was an American author and journalist best known for his extensive writings on tea and coffee, which significantly contributed to the popular understanding of these beverages in the early 20th century. He is most renowned for his seminal work, "All About Coffee," published in 1922, which not only provided a comprehensive history of coffee but also explored its cultural significance and preparation methods. Ukers' passion for these subjects was evident in his meticulous research and engaging writing style, making his works both informative and accessible to a wide audience. In addition to "All About Coffee," Ukers authored "All About Tea," further solidifying his reputation as an authority on the subject. His writings reflect a deep appreciation for the social and economic aspects of tea and coffee, highlighting their roles in various cultures and their impact on global trade. Ukers' contributions to the literature of beverages helped elevate the discourse surrounding tea and coffee, transforming them from mere commodities into subjects of cultural significance. His legacy endures through his influential works, which continue to be referenced by scholars and enthusiasts alike, marking him as a key figure in the history of beverage literature.
“Wiji Kawih is mentioned in a Kavi (Javan) inscription A.D. 856; and it is thought that the "bean broth" in David Tapperi's list of Javanese beverages (1667–82) may have been coffee [24].””