. . "Silverton???s book was the first to translate the sourdough techniques and recipes used by artisanal baking professionals for use by home bakers. ???This is the most frustrating and ultimately satisfying thing I discovered: Bread is alive,??? she says.???Sourdough bread in all its states, as a starter, as a dough, as a shaped loaf about to go in the oven, is a product not only of its ingredients," . .