Quick bread leavening process, agents (one or more food-grade chemicals—usually a weak acid and a weak base) are added into the dough during mixing. These agents undergo a chemical reaction to produce carbon dioxide, which increases the baked good's volume and produces a porous structure and lighter texture. Yeast breads often take hours to rise, and the resulting baked good's texture can vary greatly based on external factors such as temperature and humidity. By contrast, breads made with chemical leavening agents are relatively uniform, reliable, and quick. Usually, the resulting baked good is softer and lighter than a traditional yeast bread. Chemical
History of California bread History of California bread The history of California bread as a prominent factor in the field of bread baking dates from the days of the California Gold Rush around 1849, encompassing the development of sourdough bread in San Francisco. It includes the rise of artisan bakeries in the 1980s, which strongly influenced what has been called the "Bread Revolution". There have been independent retail bakeries in San Francisco continuously since the California Gold Rush of 1849, and many restaurants make their own bread. However, the wholesale market (which distributes bread regionally to restaurants and grocery stores) was marked by a