Munkoyo[1][2][3] oribwatu[4] is a type of beer brewed in ruralZambia. It is a mildly fermented drink made frommaize porridge and poundedRhynchosia venulosa (known locally asmunkoyo) roots.[5] This mixture is then boiled.[6] It can then be drunk immediately after it is made or allowed to ferment for several days. It is often called "sweet beer" by Zambians. It is also found in central African countries like Congo where it is used as a drink in traditional ceremonies as well as an ordinary beverage.
Munkoyo is known to have positive health effects, including promoting a healthiergut microbiome andvitamin B.[6]
Production of munkoyo is usually done in rural villages, and is produced fromcereal, specificallyRhynchosia venulosa. Many individuals in Zambia rely on the production of munkoyo for employment.[7] Fermentation of munkoyo is primarily fromlactic acid bacteria.[8]
While collecting munkoyo roots, some root harvesters also remove poisonous roots. This has caused several incidents of dozens of people being hospitalized.[5] One such incident happened inSolwezi District, hospitalizing 17 and killing 2,[10] and another incident nearKitwe which hospitalized 98.[11]
^Zulu, R. M.; Dillon, V. M.; Owens, J. D. (March 3, 1997). "Munkoyo beverage, a traditional Zambian fermented maize gruel using Rhynchosia root as amylase source".International Journal of Food Microbiology.34 (3):249–258.doi:10.1016/s0168-1605(96)01195-6.PMID9039570.