Explore the Books

Series · 4 volumes

The Living World of Fermentation

Food & Science

Fermentation as both a biological process and a shared human story.

About the series

The Volumes

A four-volume reference series that follows fermentation through its science, its foods, its places and its place in contemporary life.

Each volume may be read independently, but together they form a comprehensive exploration of fermentation as both a biological phenomenon and a cultural legacy.

Follow the connections

Follow the Connections

Fermentation makes more sense when its connections are visible. A microorganism introduced through biology may later appear in foods from several parts of the world. The same subject returns from a different perspective — science explains what is happening, a food shows what that process produces, and history and geography reveal how people learned to use it and how the knowledge travelled.

01 — Microorganism

Bacteria, yeasts and filamentous fungi — the living workforce behind every ferment.

Follow one thread: the soybeanMoulds such as those used in koji and tempeh; Bacillus in natto.

  1. Microorganism

    Bacteria, yeasts and filamentous fungi — the living workforce behind every ferment.

    Follow one thread: the soybeanMoulds such as those used in koji and tempeh; Bacillus in natto.

  2. Process

    Microbes and their enzymes act on sugars, starches and proteins, changing the food’s chemistry.

    The soybeanMould fermentation and alkaline fermentation.

  3. Ingredient

    The raw material shapes what is possible — its sugars, proteins, water and structure.

    The soybeanSoybeans.

  4. Food

    The same broad principles yield remarkably different foods.

    The soybeanMiso, soy sauce, natto and tempeh.

  5. Place

    Climate influences what can be grown and which microorganisms thrive.

    The soybeanJapanese, Korean, Chinese and Indonesian traditions.

  6. Culture

    Religion, custom and taste shape what communities prepare and eat.

    The soybeanFoods that remain central to national cuisines.

  7. History

    Trade and migration carry ingredients and techniques across borders.

    The soybeanFermented foods as records of human movement and exchange.

Around the world

A Tradition Without Borders

Fermentation was never the invention of a single civilisation. Similar practices emerged independently wherever people lived closely with food, seasons and the natural environment — communities separated by thousands of kilometres finding their own solutions to a common problem.

A dotted world map marking a few of the many regions with long fermentation traditions, listed below.
  1. Europe

    Sauerkraut · Cheese

    Shredded cabbage beneath layers of salt; cheesemaking along numerous paths.

  2. Central Asia & the Middle East

    Yoghurt

    Milk fermented into yoghurt.

  3. Korea

    Kimchi

    Vegetables developed into countless forms of kimchi, shaped by regional ingredients.

  4. Japan

    Miso · Soy sauce · Natto

    Soybeans became foods that remain central to the country’s cuisine.

  5. Indonesia

    Tempeh

    Soybeans transformed by Rhizopus moulds.

  6. Across Africa

    Cereals, legumes, roots and seeds fermented to improve safety, digestibility and nutritional value.

  7. The Americas & Oceania

    Indigenous communities developed methods suited to their own crops, climates and cultural practices.

  8. Found across many regions

    Bread · Vinegar

A few familiar examples, not a complete list. Every culture represented contributes to the global story of fermentation.

Ancient Knowledge. Modern Understanding.

Traditional Knowledge

People fermented food successfully for thousands of years before microorganisms could be observed or explained. Their knowledge developed through experience, observation, necessity and the passing of techniques from one generation to another.

  • Observation
  • Experience
  • Necessity
  • Generational practice

Modern Science

Microbiology gives us new ways to understand processes that traditional fermenters learned through generations of practice. Where research provides a clear explanation, it can deepen our understanding of an old practice. Where evidence remains uncertain, that uncertainty should remain visible.

  • Microbiology
  • Enzymology
  • Microbial ecology
  • Developing research

Science does not replace tradition. It offers another way of seeing it.

Fermentation preserves through change.

Marcia George, The Living World of Fermentation