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Speaker 1: Welcome to brain Stuff from how stuffworks dot com where

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Speaker 1: smart happens Hi Marshall Brain. Most people eat bread every

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Speaker 1: single day, but have you ever thought about how bread works.

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Speaker 1: Bread is a technology for turning hard wheat kernels into

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Speaker 1: something soft, airy, and delicious. One thing you need for

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Speaker 1: a good loaf of bread is yeast. Yeast is a

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Speaker 1: fungus that each sugar and produces carbon dioxide and alcohol.

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Speaker 1: In bread, you want to trap the carbon dioxide bubbles.

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Speaker 1: The wheat and bread contains something called gluten, which is

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Speaker 1: a stretchy substance a little like bubblegum. The reason why

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Speaker 1: you need bread dough is to develop the gluten and

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Speaker 1: link the molecules together. Once the yeast starts producing bubbles,

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Speaker 1: the dough catches the bubbles in little gluten balloons and

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Speaker 1: starts to rise. Gluten is approach. When you cook bread,

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Speaker 1: the protein heats up and set it firms up like

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Speaker 1: an egg does when you cook it. Be sure to

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