The Science of Coffee is a journey into coffee’s hidden microscopic secrets to help you make even better coffee at home. Documentary maker and coffee professional James Harper travels the world and speaks with leading coffee scientists to help you appreciate coffee more deeply. You are going to get taken into the science of water, coffee extraction, plant genetics, espresso technology, latte foam, sonic seasoning, our sense of taste and smell, organic farming, roasting, grinding and freshness, and how to think like a scientist. Press the Subscribe button so you don’t miss future episodes! The Science of Coffee is a spin-off series from James Harper’s documentary podcast Filter Stories. Follow James on Instagram: https://bit.ly/2Mlkk0O Listen to Filter Stories: https://bit.ly/3ajoT5
Every time we open a bag of beautiful specialty coffee — like Erick Bravo’s from Finca El Chaferote in Huila, Colombia — we’re drinking something that’s been on a long journey.
And I mean long! Over 1500 kilometers north up and down the Andes mountain range, a distance more than twice the height of France.
Along the way, it passes through dozens of hands, ma...
I travel to Colombia’s Huila region to answer a question that’s puzzled me for years: if specialty coffee pays more, is better for the environment, and brews tastier cups—why don’t more farmers grow it?
I speak with two producers in the same region whose choices couldn’t be more different. One stakes his future on specialty. The other opts out.
Their decisions come down to more than passion or a hard work ethic. Instead, I unco...
Volume. Cheap. Lame flavours. This is the traditional way of growing coffee in Brazil, and almost every farm does it this way.
But what if you wanted to produce beautiful, distinctive flavours instead—and make a living from it?
In this episode, we travel to Fazenda Paraíso in Minas Gerais, Brazil, where farmer Vicente Pereira and his daughter are on a steep learning curve finding buyers for their beautiful coffees.
Part 2 e...
Volume. Cheap. Lame flavours. This is the traditional way of growing coffee in Brazil, and almost every farm does it this way.
But what if you wanted to produce beautiful, distinctive flavours instead—and make a living from it?
In this episode, we travel to Fazenda Paraíso in Minas Gerais, Brazil, where farmer Vicente Pereira and his daughter are on a steep learning curve finding buyers for their beautiful coffees.
Part 1 u...
To roast coffee faster, you need to turn up the heat….right?
No!
In this episode, we explore the three powerful methods of heat transfer that revolutionised roasting. We’ll journey from humble beginnings—when roasting three kilos took half an hour—to machines that now roast hundreds of kilos of coffee in the time it takes you to boil a kettle.
But beans roasted at lightning speed look strange, and taste… well, you’ll find o...
A mother coffee plant gifts its baby everything it needs to grow—a green seed packed with food. But when we roast coffee, we hijack that gift and turn it into something else: flavor.
But what is flavor, at a microscopic level? What actually happens inside the bean when heat meets those nutrients?
In this episode, we shrink down to witness the Maillard reaction up close—a wild chain of molecular collisions that transforms baby p...
When I started making cold brew this last year, I treated it like hot brew filter coffee. But no matter how I adjusted the grind or tweaked the brew time, I hardly got any differences in flavor…
Then it hit me: cold brew isn’t just a slower hot brew—it’s a completely different game with its own rules!
In this episode, I speak with leading coffee researchers who break down the microscopic dance between water and coffee that expl...
For years, I used cold brew as a last resort—the only brew method to tame dark, oily beans that were too bitter for hot water.
Then one day, I took a chance on a Guatemalan Gesha and brewed it cold. The result? A massive explosion of florals I’d never tasted before. That single cup sent opened my eyes into how extraordinary cold brew can be.
In this episode, I speak with world-leading coffee scientists who explain why brewing ...
We’re back with another series of The Science of Coffee—and this time we’re diving even deeper into coffee’s hidden microscopic secrets!
Over the past year, narrative audio producer and coffee professional James Harper has scoured academic journals, ventured deep into coffee farms, and conducted bold tasting experiments.
Now, he’s weaving those discoveries into captivating audio stories that reveal why coffee tastes the way it ...
I’m Jay Shetty host of On Purpose the worlds #1 Mental Health podcast and I’m so grateful you found us. I started this podcast 5 years ago to invite you into conversations and workshops that are designed to help make you happier, healthier and more healed. I believe that when you (yes you) feel seen, heard and understood you’re able to deal with relationship struggles, work challenges and life’s ups and downs with more ease and grace. I interview experts, celebrities, thought leaders and athletes so that we can grow our mindset, build better habits and uncover a side of them we’ve never seen before. New episodes every Monday and Friday. Your support means the world to me and I don’t take it for granted — click the follow button and leave a review to help us spread the love with On Purpose. I can’t wait for you to listen to your first or 500th episode!
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