Sourdough bread

Sourdough is naturally leavened bread, which means it dosen't use commercial yeast to rise. Instead, it uses a 'starter', which is fermented flour and water mixture that contains wild yeast and good bacteria - to rise. This also produces the tangy flavour and slightly chewy texture you'll find in sourdough. Wild yeast has more flavour than commercial yeast, and is natural in the sense that it doesn't contain any additives.
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