Umqombothi (xhosa pronunciation: [um̩k͡ǃomboːtʰi]), is a xhosa traditional beer made from maize (corn), maize malt, sorghum malt, yeast and water. it is very rich in vitamin b. the beer has a rather low alcohol content (usually less than 3%) and is known to have a heavy and distinctly sour aroma. in appearance, the beer is opaque and light tan in colour. it has a thick, creamy and gritty consistency (from the maize). umqombothi is cheaper than commercial lager beers brewed from barley and flavoured with hop flowers.

Source: Wikipedia