Adventures in… Fermentation

Adventures in... Fermentation
Podcast Description
Where does rot end and revelation begin? In Adventures in Fermentation, scientist-chef Dr Johnny Drain explores the fizzing frontier where microbes transform food, flavour and the future. Each week he swaps stories and experiments with chefs, scientists, artists and other oddballs—revealing how bacteria, yeasts and moulds shape culture, climate, medicine and taste. Expect sharp science, global tales, recipe tips and the occasional explosive pickle. Pull up a jar, hit subscribe, and dive in.
Podcast Insights
Content Themes
The podcast focuses on fermentation science, culinary history, and microbial culture, with episodes covering topics such as the role of koji in food production and the impact of fermentation on climate and health.

Where does rot end and revelation begin? In Adventures in Fermentation, scientist-chef Dr Johnny Drain explores the fizzing frontier where microbes transform food, flavour and the future. Each week he swaps stories and experiments with chefs, scientists, artists and other oddballs—revealing how bacteria, yeasts and moulds shape culture, climate, medicine and taste. Expect sharp science, global tales, recipe tips and the occasional explosive pickle. Pull up a jar, hit subscribe, and dive in.
Dietitian and microbiome scientist Dr. Emily Leeming joins Dr. Johnny Drain to talk bugs, brains, and breakfast. From private cheffing at sea to decoding the gut at King’s College London, they dive into leaky guts, making fibre sexy, and the future of fermented foods.
From superyacht chef to microbiome scientist — Dr. Emily Leeming has seen food from both sides of the pass. In this episode, she joins fermentation expert Dr. Johnny Drain to explore the gut-brain connection, sexy fibre, and whether kefir really is better than kombucha.
Emily is a dietitian and researcher at King’s College London, where she investigates how diet impacts mental health, cognition, and the gut microbiome. Expect science, anecdotes, and lots of good bugs.
In this episode:
- The myth of leaky gut syndrome
- How dietary fibre shapes your microbes and mood
- Why kefir has the scientific edge
- What it means to eat joyfully, not fearfully
- Translating research into real-life eating

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