Bread Science 101: Bread can be a simple unraised combination of flour and water or it can be leavened by yeast, baking soda or baking powder. The acid salts of baking powder react with the baking soda to produce carbon dioxide gas, which raises the batter or dough. Yeast is a fungus which converts sugar to energy and releases carbon dioxide as a waste. If the carbon dioxide is captured by a network of gluten, bread rises. Try the gluten animation!
