I've extensive experience with sourdough. My own culture is at least 10 years old. I've never fed it anything but all purpose flour. I tend to agree with aryaya - just feed it the most affordable, then use your special stuff when making bread! I've made all-white, whole-grain, spelt, etc., etc., but have always fed the started with all-purpose. For my all-white loaf (my favorite), I use a high-protein flour such as King Aurthur bread flour.
That said, I hear a great way to increase sourness in your bread is to feed your starter with rye flour.Statistics: Posted by kagy — Mon Jan 25, 2016 7:26 pm
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