A sourdough starter is a fermented mix of flour and water that ... which are wild relatives of yeast used in commercial preparations. In sourdough bread, the starter acts as the rising agent.
Before commercial yeast became available ... You can make your own bread improver by creating a natural leaven: in a clean jar mix four teaspoons of wholemeal flour with four teaspoons of water ...
Bread can be bought ready-made or be homemade ... You should never use very hot water to mix dough because it will kill the yeast and stop the dough from rising. Be sure not to use too much ...