# The Useful Bubble

> The Useful Bubble is an independent educational publication about carbon dioxide in baking, fermentation, drinks, and ordinary kitchen phenomena. It is not a food manufacturer, testing laboratory, appliance company, environmental organization, restaurant, or continuation of any former entity associated with this domain.

The Useful Bubble publishes original, long-form guides about -. Every article opens with a concise direct answer, is structured with clear headings and FAQs, and reflects mainstream expert consensus.

## Baking Science

- [Baking Soda vs Baking Powder: What Changes](https://ilovemycarbondioxide.com/baking-soda-vs-baking-powder/): Baking soda is sodium bicarbonate and needs acid plus moisture in the recipe to produce carbon dioxide.
- [How Leavening Works in Baking](https://ilovemycarbondioxide.com/how-leavening-works-in-baking/): Leavening works when gas bubbles form or enter a dough or batter, expand, and remain trapped until heat sets the surrounding structure.

## Fermentation Basics

- [How to Tell If Yeast Is Still Good](https://ilovemycarbondioxide.com/how-to-tell-if-yeast-is-alive/): Check the package date, storage history and yeast type, then follow that manufacturer's activity test.
- [Why Does Bread Dough Collapse After Rising?](https://ilovemycarbondioxide.com/why-bread-dough-collapses-after-rising/): Bread dough can collapse because it has proofed too far, because its flour cannot support the intended structure, or because the oven was not hot enough.
- [Why Bread Dough Rises](https://ilovemycarbondioxide.com/why-bread-dough-rises/): Bread dough rises when yeast metabolizes available sugars and produces carbon dioxide and ethanol.

## Full text for LLMs

- [llms-full.txt](https://ilovemycarbondioxide.com/llms-full.txt): every article as plain markdown in one file
- Each article is also available as markdown at https://ilovemycarbondioxide.com/<slug>.md

## Site

- [About](https://ilovemycarbondioxide.com/about/): editorial approach and standards
- [All articles](https://ilovemycarbondioxide.com/all/)
- [Contact](https://ilovemycarbondioxide.com/contact/)