Welcome to brain Stuff from how stuffworks dot com where smart happens Hi Marshall Brain. Most people eat bread every single day, but have you ever thought about how bread works. Bread is a technology for turning hard wheat kernels into something soft, airy, and delicious. One thing you need for a good loaf of bread is yeast. Yeast is a fungus that each sugar and produces carbon dioxide and alcohol. In bread, you want to trap the carbon dioxide bubbles.
The wheat and bread contains something called gluten, which is a stretchy substance a little like bubblegum. The reason why you need bread dough is to develop the gluten and link the molecules together. Once the yeast starts producing bubbles, the dough catches the bubbles in little gluten balloons and starts to rise. Gluten is approach. When you cook bread, the protein heats up and set it firms up like
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