Why Bread Dough Holds Gas

Transcript

This is bread dough, soft outside yet holding gas inside.

Yeast feeds on flour sugars and releases carbon dioxide during fermentation.

The gas gathers in tiny bubbles, each wrapped in a thin gluten film.

Gluten is a protein framework that stretches around bubbles while resisting rupture.

Kneading develops this network and spreads oversized gas pockets more evenly.

Expanding bubbles push dough outward without escaping at once.

The baked crumb reveals the spaces those bubbles helped create.

In the oven, heat expands trapped gases further and firms the gluten structure.

So bread is a gas-filled elastic network, later fixed in place by heat.