Rob, Jeff Hamelman, our head baker literally wrote the book on sourdough; his book is highly regarded. He's been experimenting with frozen starter recently, and said while a frozen starter may actually work and raise dough, it's no longer the same starter; it's basically a new one developed from "dead" ingredients. His tests show that thawed/frozen starter just doesn't create as good a loaf. But - that said - glad it worked for you! PJH

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