Marcia, this starter is not certified organic, but if you're interested in a DIY option, you can definitely make your own starter fairly easily with our Organic Whole Wheat Flour by following the instructions in our Sourdough Baking Guide. What's especially neat about this is that the natural yeasts found in the air where you live are unique to your micro-region, so no other starter will be quite like yours. Happy baking! Kat@KAF

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