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The Book of Sourdough

A Work in Progress (Just Like Your First Loaf)

Welcome to The Book of Sourdough! If you’ve ever stared at a jar of flour and water, wondering how on earth it could transform into a living, bubbling starter — you’re in the right place.

This project, like a good levain, is still rising. We’re building a resource that grows day by day, crumb by crumb.

Sourdough Starter
Flour, water, and a lively colony of yeast and bacteria. This section explains how to create, feed, maintain, and troubleshoot the heart of every sourdough bread.

Explore the craft…

IngredientsSourdough Bread IngredientsGood bread begins with simple things: flour, water, salt, and time. Here we look at the ingredients that shape flavor, texture, and fermentation.

Step into the details…

Technique & MethodsSourdough Bread - Techniques & MethodsMost of sourdough happens before the oven. Folding, fermenting, testing, and shaping the dough are the practical skills that turn flour and water into bread.

See how it works…

Equipment & MaterialsSourdough Bread - Equipment & MaterialsDo you really need expensive gear? Probably not. This section looks at the tools and materials that actually help — and the many things you can happily bake without.

Explore more…

My RecipesSourdough Bread - My RecipesA small collection of breads I actually bake. No endless variations — just reliable sourdough recipes that work in a normal kitchen.

Take a closer look….

My NotesSourdough Bread - My NotesMy baker’s notebook: observations from the kitchen, small experiments, useful discoveries, and the occasional sourdough myth worth questioning.

Learn more…

Science of SourdoughScience of SourdoughA look at the biology and chemistry behind fermentation. Not required reading, but helpful for those who enjoy understanding what the dough is doing.

Step into the details…

History & OriginsHistory of Sourdough BreadSourdough is far older than modern bakeries. Here we explore how people baked bread long before commercial yeast existed.

Explore more…

LiteratureSourdough Baking LiteratureBooks, historical texts, and thoughtful authors who have shaped the written world of sourdough baking.

Take a closer look….


Latest Posts


The Window Pane Test in Sourdough Baking

The Window Pane Test in Sourdough Baking: When Gluten Development Actually Matters

Spend enough time watching sourdough videos online and you may start believing that every successful loaf depends on pulling a ...
Rustic Mini Baguettes

For Your Sourdough Discard: Crackles – Rustic Mini Baguettes Done Right

There is a quiet frustration in sourdough baking that nobody talks about enough: discard. You build a starter, you feed ...
Cold Proofing Sourdough

Cold Proofing Sourdough: Why Overnight Fermentation Transforms Flavor, Structure, and Control

Cold proofing is one of those steps that feels optional—until you skip it and realize what you’ve been missing. It’s ...
Difference Between Whole Wheat and Stone-Ground Flour

The Real Difference Between Whole Wheat and Stone-Ground Flour (And Why Rye Changes the Game)

If you’ve ever compared a bag of whole wheat flour from King Arthur Baking Company with a stone-ground flour from ...

The Tuscon Table Loaf: Built for Olive Oil, Balsamic, and Bold Appetites

It started, as many good baking ideas do, with a moment of mild obsession at a local Italian restaurant—one of ...
Levain vs. “Old Dough”

Levain vs. “Old Dough”: The YouTube Myth That Falls Apart in Your Kitchen

I’m still fascinated by the history of sourdough—and far from done exploring it—so I keep wandering down the rabbit hole ...
Scoring Sourdough

Scoring Sourdough: Separating Function from Fashion

There is a moment in every sourdough baker’s journey when scoring the dough becomes a source of quiet anxiety. Not ...
Sourdough Starter Troubleshooting

Sourdough Starter Troubleshooting: The Real Reasons It Won’t Rise

If your sourdough starter won’t rise, don’t throw it away just yet. There’s a good chance it’s not dead—it’s simply ...
Medieval Bread vs Modern Bread

Medieval Bread vs. Modern Bread: What Changed—and Does It Matter for Your Health?

I’ll admit it—I still fall down the YouTube rabbit hole of sourdough advice. Not proudly, not regularly… but often enough ...
The Chorleywood Bread Process Explained

The Chorleywood Bread Process Explained: How Industrial Baking Changed Bread Forever

If you have ever wondered why supermarket sandwich bread can be soft for a week, squish into a perfect little ...
Why Rye Was the Grain of Survival in Medieval Northern Europe

Why Rye Was the Grain of Survival in Medieval Northern Europe

Throughout much of medieval Northern Europe, rye was far more than just another grain. It was the crop that stood ...
Potash and the Peculiar History of Making Bread Rise Before Anyone Knew Why

Potash and the Peculiar History of Making Bread Rise Before Anyone Knew Why

Modern sourdough bakers obsess over hydration percentages, fermentation curves, starter maturity, and flour protein levels. Yet long before anyone understood ...
Why Homemade Sourdough Bread Only Lasts 3–4 Days

Why Homemade Sourdough Bread Only Lasts 3–4 Days (And Why That’s Normal)

One of the most persistent myths in the sourdough world is the idea that a “real” sourdough loaf should somehow ...
How Geography, History, and Industry Shaped the World of Sourdough Bread

From Rye to Wheat: How Geography, History, and Industry Shaped the World of Sourdough Bread

Growing up in Germany, I ate rye sourdough bread almost daily without giving it much thought. It was simply “bread.” ...
Is Sourdough Bread Actually Healthy

Is Sourdough Bread Actually Healthy? The Truth About Nutrition, Starch, and Flour Choice

Few foods have been elevated to modern health-cult status quite like sourdough bread. To hear parts of the internet tell ...