“…The production and consumption of sourdough can be traced back to several millennia BC, as assessed from pottery remains from ancient Egyptian tombs, up to 8000 years ago (Papadimitriou et al 2019). Today, we think of sourdough as a special type of bread but before the advent of commercial yeast sourdough was the only way bread was made (Harris 2003). The manner of sourdough use has remained virtually unchanged from antiquity until the late seventeenth century.…”