How starter hydration slows bacterial fermentation
Since school there was one nugget of sourdough wisdom that had always been drilled into me, “firm starters produce acetic acid and liquid starters produce lactic acid”, the lesson continues that breads made from the appropriate starter will also produce breads of following acidity, with lactic acid being the weaker of the two. Yet, recent discussions of the topic point to the opposite, which does make some sense, with less water to move around in, bacteria would be less able to access appropriate nutrients, therefore, energy, with which to grow and reproduce.
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