Why Does Bread Have Holes in It?

Bread has holes because tiny bubbles get trapped inside it when it bakes.

When you make bread, you mix flour, water, and sometimes yeast (a special kind of helper that makes bread rise). The yeast eats the sugar in the flour and produces carbon dioxide, which is like invisible bubbles.

These bubbles get trapped inside the dough, just like when you blow up a balloon and tie it off. When you put the dough in the oven, the heat makes the bubbles grow bigger and harder, leaving behind little empty spaces, holes!

Imagine pushing playdough through your fingers while it’s still soft, that’s what happens when bread is being kneaded (squished and rolled). The more you do this, the more bubbles get mixed in. Then, when the bread bakes, all those little pockets of air turn into holes, making the bread light and fluffy instead of flat and heavy.

So next time you eat a slice of bread, think about all the tiny bubbles working together to make it delicious!