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
Bread (band) Griffin, whom Gates failed to invite after further rising tensions and Griffin's worsening substance abuse troubles. They ended the year with no further plans to record as a group. In 1978 Gates enjoyed success as a solo artist with the hit singles "Goodbye Girl" (#15; from the movie "The Goodbye Girl") and "Took the Last Train" (#30). He then continued to tour with Botts and Knechtel as "David Gates & Bread" and make TV appearances, including a guest shot on "The Hardy Boys Mysteries" which aired in November 1978. The group's 1978 touring line-up once again included Dean Parks for