Bread have a special taste or texture. At one time, all yeast-leavened breads were sourdoughs. Recently there has been a revival of sourdough bread in artisan bakeries. Traditionally, peasant families throughout Europe baked on a fixed schedule, perhaps once a week. The starter was saved from the previous week's dough. The starter was mixed with the new ingredients, the dough was left to rise, and then a piece of it was saved (to be the starter for next week's bread). The rapid expansion of steam produced during baking leavens the bread, which is as simple as it is unpredictable. Steam-leavening is
Rye bread fennel, coriander, aniseed, cardamom, or citrus peel. In addition to caramel and molasses, ingredients such as coffee, cocoa, or toasted bread crumbs are sometimes used for both color and flavor in very dark breads like pumpernickels. The addition of caraway seeds to rye bread is to counter the bloating that can be caused by the high fiber content of rye. Caraway has well-known anti-flatulence properties; however, the association is so long-standing that the flavor combination is now almost inseparable. A simple, all-rye bread can be made using a sourdough starter and rye meal; it will not rise as high as