Chibuku

Chibuku is a commercial sorghum beer based on the traditional Umqombothi homemade African beers; the main grains used are malted sorghum and maize but may also contain millet. "Chibuku" comes from Max Heinrich's habit of recording all consumers' comments and process changes in a book. Chibuku is an adaptation of the local Zambian Chibemba language word for "book" - "Chi" is the prefix meaning "big", "buk" = "book", and the terminal "u" is because most African nouns tend to end in a euphonic vowel. The shake-shake comes from the ritual of shaking up the beer before taking the first sip. The beer contains starch, germ, and yeast , and since the solids settle to the bottom of the carton, it needs to be shaken before sipping. Chibuku was first brewed in Zimbabwe in 1962 by Delta Beverages Breweries after being brewed in Zambia in the 1950s. It is the traditional opaque beer brewed with the selected variety of sorghum locally grown in Zambia.

Source: Wikipedia