The fermentation and baking of sourdough is the one of the most miraculous chain of molecular events that never ceases to amaze. Watching over time as three very simple whole ingredients transform into an entirely new food is both astounding and captivating, and can conjure up some of the strongest nostalgic feelings of childhood by the aroma alone. Humans have been baking bread, in one form or another, for approximately 10,000 years and although what was once considered magic has now...