Why is Yeast Added to Breads?
Yeast is the ingredient added to breads that causes them to rise. A lump of dough that does not contain any yeast will produce a flat bread. Yeast eats sugar and emits carbon dioxide gas. Yeast in combination with dough that is high in gluten will make dough rise because the sticky gluten traps the carbon dioxide gas allowing the yeast to blow up the dough like a balloon.
