The Science of Sourdough
Sourdough bread is made using a mixture of flour and water that contains naturally occurring yeast and bacteria. Its recent (17) ________ has encouraged many home bakers to experiment with their own starters. Keeping one alive requires regular feeding, usually with equal amounts of flour and water, but the process is not especially (18) ________ once a routine has been established. Temperature has a strong (19) ________ on how quickly the mixture develops. In a warm kitchen, fermentation can become surprisingly (20) ________, while cooler conditions slow it down. Bakers also learn to recognise small changes in smell and (21) ________ that show when the starter is ready to use. Although recipes provide useful guidance, some (22) ________ is always necessary because different flours behave differently. The long fermentation gives the bread its characteristic flavour and can improve its (23) ________. For many people, however, the main (24) ________ is the joy of making a good loaf at home from such simple ingredients.