Thin mealie pap (maize meal) is prepared, to which wheat flour is added, providing the inoculum of lactate-producing bacteria. The mixture is left to ferment, typically in a warm area. Pasteurisation is done in commercial operations to extend shelf-life.
Nutrition
Nutritionally, it is similar to its parent mealie meal, but with the glucose metabolized to lactate during fermentation. Commercial preparations are often enriched (In South Africa, the term 'fortification' is only allowed legally for specific, government-sanctioned nutrition programs, e.g. that of bread) with vitamins and minerals. Although typically considered non-alcoholic, very small amounts (less than 1%) of ethanol have been reported.[1]