[header] How to rise bread [title] Use the proper amount of yeast for your recipe. [step] When it comes to bread baking, adding yeast is the surest way to get bread to rise. When you mix flour, water and yeast together, the yeast releases enzymes that break down the flour into simple sugars. 
The yeast consumes the sugars and produces carbon dioxide and ethyl alcohol. As a result, air bubbles form in the dough, helping it rise to tall, fluffy heights.