Wikipedia
Thobwa
Thobwa is a Malawian fermented drink that has a milky appearance, a cereal taste and a grainy texture. It is made from white maize and millet or sorghum and is popular in all parts of the country. The name thobwa means "sweet beer", and although it is a non-alcoholic drink the same drink can be left for 5 days and it will turn to 'mowa' or beer.