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
Tandoor bread infused smoky flavor, which makes it a special delicacy in Southern Asia. Production of tandoor bread is based on seven different phases: survey of current practice, design and installation of a tandoor, and development of standardized procedure for tandoori bread production, development of an evaluation scheme for tandoori breads, development of a reference set of grain and flour samples, investigation of the significance of parameters, and investigation of the relationship between wheat and flour parameters and tandoori bread quality. Aroma, smell, appearance, color, and size, and overall texture are the general characteristics that are optimized by producers of tandoor bread.