Home Podcasts Filter Stories - Coffee Documentaries
Filter Stories - Coffee Documentaries

Filter Stories - Coffee Documentaries

James Harper 81 Episodes Aug 9, 2026

Filter Stories is a podcast that explores coffee through the lenses of history and science. It reveals hidden microscopic secrets about coffee and its powerful past. The show also explains how individual choices of coffee beans affect millions of people. Listeners can follow behind-the-scenes stories on Instagram. The podcast encourages subscriptions and reviews.

Episodes

Producer Toolkit: Processing, Pt 3 - Critical instruments and poisoned rivers
Producer Toolkit: Processing, Pt 3 - Critical instruments and poisoned rivers Aug 9, 2026 1708 This episode explores how just a handful of cheap instruments can ensure quality is reproducible year-on-year, and the wastewater crisis poisoning rivers behind picture-perfect coffee farms. Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you understand coffee farming better than most professionals you'll meet at a trade show. Each episode takes o
Producer Toolkit: Processing, Pt 2 - Drying mistakes that ruin coffee quality
Producer Toolkit: Processing, Pt 2 - Drying mistakes that ruin coffee quality Aug 9, 2026 1839 This episode explores the simple drying mistakes that compromise months of careful work, and the low-cost fixes that protect a coffee's shelf life and flavour. Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you understand coffee farming better than most professionals you'll meet at a trade show. Each episode takes one part of the farming business
Producer Toolkit: Processing, Pt 1 - Coffee rockstars and picking’s brutal economics
Producer Toolkit: Processing, Pt 1 - Coffee rockstars and picking’s brutal economics Aug 9, 2026 2506 This episode explores why chasing avant-garde processing before nailing the basics is a trap for most producers, the brutal economics behind selectively picking and ways to sort coffee cherries in the wet mill.  Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you understand coffee farming better than most professionals you'll meet at a trade show.
Producer Toolkit: Farming, Pt 3 - Starved soils and vanishing labour
Producer Toolkit: Farming, Pt 3 - Starved soils and vanishing labour Jul 27, 2026 2672 This episode explores what plants really need from the soil beneath them, and the labour shortage forcing farms to rethink how the work gets done. Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you understand coffee farming better than most professionals you'll meet at a trade show. Each episode takes one part of the farming business — agronomy,
Producer Toolkit: Farming, Pt 2 - Water crisis, risky genetics and cash flow crunch
Producer Toolkit: Farming, Pt 2 - Water crisis, risky genetics and cash flow crunch Jul 27, 2026 2104 This episode explores the growing water crisis in coffee farming, why farmers are drawn to risky coffee varieties and coffee farming's hidden cashflow traps. Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, this series will help you understand coffee farming better than most professionals you'll meet at a trade show. Each episode takes one part of the farming b
Producer Toolkit: Farming, Pt 1 - Low harvests and profit blind spots
Producer Toolkit: Farming, Pt 1 - Low harvests and profit blind spots Jul 27, 2026 1545 Welcome to The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis. This series will help you understand coffee farming better than most professionals you'll meet at a trade show. Each episode takes one part of the farming business — agronomy, processing, fermentation, storage, quality, sales — and lays out what the best farms are actually doing.  In this first episode, we cov
History: Guatemala’s Inconvenient Truth, Pt 2
History: Guatemala’s Inconvenient Truth, Pt 2 Apr 20, 2026 1724 Specialty coffee changes the story for the indigenous people of Guatemala. Coffee as a tool of oppression finally offers hope....and then something a bit more complicated.   This episode explores the tension between the values of the Mayan communities who grow coffee, and the values that drive the specialty coffee movement.   Many of the signals we typically look for in our coffees - super-special
History: Guatemala’s Inconvenient Truth, Pt 1
History: Guatemala’s Inconvenient Truth, Pt 1 Apr 20, 2026 2630 When you buy a bag of coffee labelled fifth-generation family farm, it feels like a good choice.    But in Guatemala, that label might actually be a signal for a more uncomfortable truth.   This episode explores how land has been understood, used, and eventually fought over in Guatemala for centuries between indigenous people, Europeans and those in-between.   It’s a story of what happened immedia
History: Surrogates - Anything but the coffee
History: Surrogates - Anything but the coffee Mar 2, 2026 2785 What happens when coffee disappears?   This is not a thought experiment! It’s happened many times in history: War, blockades, tariffs, ideology, health panics, sanctions, supply shocks.    When coffee is not around, people still need something warm, comforting, and familiar. And throughout history, people have reached for coffee surrogates: roasted plants and grains engineered to look like coffee…
History: Ethiopia’s wild coffee forests
History: Ethiopia’s wild coffee forests Feb 9, 2026 2920 Most coffee is grown on vast plantations using machines, pesticides and fertilisers.    But in Ethiopia, coffee grows wild in humid forests surrounded by birds.    And that wild coffee matters more than most of us realise. It is the genetic ‘library’ we can turn to find new varieties to help us keep coffee thriving in the face of climate change.    But the communities who live alongside them and h
History: Hamburg and Europe’s coffee trade
History: Hamburg and Europe’s coffee trade Jan 5, 2026 3012 On a long walk through Hamburg, somewhere between the fish markets and giant cranes, you might stumble a giant bronze coffee bean looks like its crash landed from space.    But this giant coffee bean represents a staggering fact: one in every three cups of coffee drunk in Europe has passed through Hamburg.    In the first half of this episode, we explore the many profound ways coffee shaped one of
Introducing: Series Three of A History of Coffee
Introducing: Series Three of A History of Coffee Dec 29, 2025 179 We’re back with more stories about the tiny psychoactive seed that changed the world and continues to shape our lives today. Is it possible to follow the story not just to Ethiopia, not just to a single town, but all the way back to one tree? We’ll uncover the uncomfortable history of Guatemala — a story about who inherited the rich volcanic soil, and who was forced to work it. We explore what

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