Bread unpredictable since the steam is not produced until the bread is baked. Steam leavening happens regardless of the raising agents (baking soda, yeast, baking powder, sour dough, beaten egg white) included in the mix. The leavening agent either contains air bubbles or generates carbon dioxide. The heat vaporises the water from the inner surface of the bubbles within the dough. The steam expands and makes the bread rise. This is the main factor in the rising of bread once it has been put in the oven. CO generation, on its own, is too small to account for the rise. Heat
Bread (band) edition hardback titled "Bread: A Sweet Surrender" (originally called "Manna from Heaven: The Musical Rise & Fall of Bread"). It was written with the assistance of many surviving family members and musical colleagues of the band, along with exclusive interviews with founding member Robb Royer. A paperback/soft-cover edition appeared during 2017. The following year saw Royer publish his own memoirs, "The View From Contessa", featuring tales from his own varied career, available as an eBook via Amazon. Bread (band) Bread was an American soft rock band from Los Angeles, California. They placed 13 songs on the "Billboard" Hot 100 chart