Why Is Sourdough Called “Sourdough”?

Welcome to Sourdough by the Sea — your seaside kitchen for artisan bread-making.

Sourdough bread is called “sour-dough” because the bread is made with a fermented dough rather than just commercial yeast.

Let’s break down where the name “sourdough” comes from, why it matters, and how you can start making amazing loaves at home today.

This naturally occurring bacteria which ferments bread flour forms a culture known as a sourdough starter.

This starter is a mixture of flour and water that is left to ferment over time, which allows wild yeast and bacteria to colonise it. This fermentation process produces lactic acid and acetic acid, which give the bread its characteristic tangy, slightly sour flavour.

1. The Origins of the Term “Sourdough”: The term “sourdough” has its roots in Old English, where “sūr” means sour and “dōh” refers to dough. This etymology suggests a connection between the sour taste often associated with sourdough bread and its name.
2. The Role of Fermentation in Sourdough: At the heart of sourdough bread-making is the process of natural fermentation. Unlike commercial bread, which relies on fast-acting yeast, sourdough utilises wild yeast and lactobacilli present in the environment. These microorganisms produce lactic acid and acetic acid during fermentation, contributing to the bread’s characteristic flavour.
3. Variability in Sourdough flavour: While sourdough bread can indeed have a tangy taste, not all loaves exhibit the same level of sourness. The degree of sourness can vary depending on factors such as fermentation time, temperature, and the composition of the sourdough starter used. Some sourdough breads may have a mild tang, while others boast a more pronounced sour flavour.
4. Cultural and Regional Influences: The flavour profile of sourdough bread can also be influenced by cultural and regional factors. For example, San Francisco sourdough is renowned for its distinctive tanginess, attributed to the unique microbial strains found in the city’s air. In contrast, sourdough breads from other regions may exhibit different flavour profiles based on local ingredients and traditions.
5. Modern Interpretations of Sourdough: In recent years, sourdough bread has experienced a resurgence in popularity, with artisanal bakeries and home bakers alike embracing its rustic charm. While some seek out the sour tang characteristic of traditional sourdough, others prefer milder, sweeter variations. This diversity reflects the adaptability and versatility of sourdough as a bread-making technique.
6. The Enduring Appeal of Sourdough: Despite its name, sourdough bread holds a special place in the hearts of bread enthusiasts worldwide. Its complex flavour, chewy texture, and rustic appearance continue to captivate our senses and evoke feelings of comfort and nostalgia.

The name “sourdough” may be somewhat misleading, as not all sourdough bread is sour. However, the term reflects the historical roots and traditional methods of bread-making that have shaped this beloved culinary staple. Whether it’s mildly tangy or boldly sour, sourdough bread continues to delight and inspire us with its timeless allure.

Ready to Start Making Your Own Sourdough?

At Sourdough by the Sea we offer Starter Gift Sets that include everything you need: starter jar, proofing basket, dough cutter, full guide to maintaining your culture + recipes. Check out our Sourdough Starter Gift Sets.

Why our Starter Kits?

• All-in-one: you don’t need to hunt for extra items.
• Designed for beginners AND confident home bakers.
• Backed by our guide and support so you’ll get results.

Sourdough Breadmaking at Home with our Bestselling Sourdough Starter Gift Sets

Choose from one of our Bestselling Sourdough starter gift sets – which comes with all you need to make delicious tasting bread and pizzas any time of year. Starter jar, proofing basket, dough cutter and our guide to looking after starter culture, recipes and more.