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

Filter Stories - Coffee Documentaries

James Harper 81 Episodes Oct 12, 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: Quality Assurance, Pt 2 - The basics of good water for coffee
Producer Toolkit: Quality Assurance, Pt 2 - The basics of good water for coffee Oct 12, 2026 42:01 This episode takes you through the basics of good water for coffee.To objectively assess a coffee's quality, both producer and buyer need to taste it using the same water. But whose water standards should you choose? Why do roasters often get to define what the "right" water is? What would the coffee world look like if producers set quality standards instead of roasters?Part of The Coffee Producer
Producer Toolkit: Quality Assurance, Pt 1 - A practical guide to tasting and roasting coffee
Producer Toolkit: Quality Assurance, Pt 1 - A practical guide to tasting and roasting coffee Oct 12, 2026 30:01 This episode is a practical guide to tasting coffee, sample roasting and judging quality, built for small producers on a tight budget. That makes it just as useful if you’re early in your coffee journey and want to learn the basics without spending thousands on equipment, starting with a frying pan or a $30 popcorn popper.If you work in coffee, it reveals the obstacles producers face when they try
Producer Toolkit: Price, Pt 2 - Discovering the true value of coffee
Producer Toolkit: Price, Pt 2 - Discovering the true value of coffee Sep 28, 2026 48:33 What is the right price for coffee? This episode shows what the journey of price discovery looks like from the perspective of a coffee farmer. 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, proce
Producer Toolkit: Price, Pt 1 - How the commodity 'C' market works
Producer Toolkit: Price, Pt 1 - How the commodity 'C' market works Sep 28, 2026 41:12 This episode explores the strange world of the C market, where movements in the Brazilian currency or rebels boarding a random container ship decide the worth of a Colombian farmer's coffee. Yet specialty coffee still uses this number to price the coffees it says are anything but a commodity.Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you unde
Producer Toolkit: Marketing & Sales, Pt 2 - Navigating trade shows
Producer Toolkit: Marketing & Sales, Pt 2 - Navigating trade shows Sep 14, 2026 43:21 This episode explores what a trade show actually feels like for a farmer who flew in on money his community pooled together, why a sausage dog opened a door that hundreds of cold emails couldn't, and why learning English may be a better investment for a farmer than a longer fermentation.Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you understan
Producer Toolkit: Marketing & Sales, Pt 1 - The power of story
Producer Toolkit: Marketing & Sales, Pt 1 - The power of story Sep 14, 2026 37:09 This episode explores why specialty coffee is a luxury business that runs on story more than 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 — agronomy, processing, fermentation, storage, quality, sal
Producer Toolkit: Fermentation, Pt 3 - Is using yeast cheating? And who decides?
Producer Toolkit: Fermentation, Pt 3 - Is using yeast cheating? And who decides? Aug 24, 2026 32:32 This episode explores why 30 cents a kilo is trivial for a large farm and unaffordable for a small one, the strange power imbalance that lets roasters define quality when nobody asks a winemaker what yeast they used, and how producers can talk to buyers who think starter cultures are cheating.Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you und
Producer Toolkit: Fermentation, Pt 2 - The case for avoiding exciting fermentations
Producer Toolkit: Fermentation, Pt 2 - The case for avoiding exciting fermentations Aug 24, 2026 35:50 This episode explores why the specialty industry's obsession with exotic processing is a dangerous signal for farmers, five ways commercial microbes can make a farm more money, and what a well-run fermentation looks like on farms of very different sizes.Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Solis, it will help you understand coffee farming better than most
Producer Toolkit: Fermentation, Pt 1 - Nature's lottery and coffee's 3,000-year lag
Producer Toolkit: Fermentation, Pt 1 - Nature's lottery and coffee's 3,000-year lag Aug 24, 2026 22:32 This episode explores why coffee is only fifteen years into a fermentation revolution that wine and bread went through millennia ago, what's actually happening inside the tank when microbes multiply into billions on their own, and why farmers who used to ferment as fast as possible are now trying to do the opposite. Part of The Coffee Producer Toolkit, a series made in collaboration with Lucia Sol
Producer Toolkit: Processing, Pt 3 - Critical instruments and poisoned rivers
Producer Toolkit: Processing, Pt 3 - Critical instruments and poisoned rivers Aug 9, 2026 28:28 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 one
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 30:40 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 41:46 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.E

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