Freshness and Grinding, Part 1: Protecting your coffee’s flavours

Freshness and Grinding, Part 1: Protecting your coffee’s flavours

For your coffee to taste its best, it’s crucial you buy fresh roasts and grind fresh.… .….Or maybe not. When I began creating this episode, I was convinced that ‘fresh is best’. But, after delving into the science of coffee freshness, I don’t believe that anymore. This episode goes deep into how diffusion and oxidation changes a coffee’s flavours. You’ll learn what it takes to store your coffee grounds unbelievably well. So well, that if you do it right, you will struggle to taste the difference between two month old coffee compared to those same beans freshly ground! But here’s the weirdest thing: Maybe, just maybe, you will prefer old coffee more than the fresh stuff. ---------- Please spread the word about The Science of Coffee! Discover how I make these Filter Stories episodes by subscribing to my Substack newsletter. Leave a 5 star rating on Spotify Follow me on Instagram and tag me in an Instagram story Write a review on Apple Podcasts Explore Mahlkönig’s range of world leading grinders, trusted by baristas globally. Dive deeper into the science of coffee freshness Do a Certificate of Advanced Studies with the Coffee Excellence Centre Pick up a copy of the SCA’s Coffee Freshness Handbook Connect with my very knowledgeable guests Samo Smrke - Instagram 19 Grams Coffee Roasters in Berlin - Instagram Arnaldo Rodrigues - LinkedIn The Science of Coffee is made possible by these leading coffee organisations: BWT Water and More Marco Beverage Systems ROEST Sustainable Harvest Mahlkönig The Science of Coffee is a spin-off series from James Harper's documentary podcast Filter Stories Check out Standart, the award-winning coffee magazine. Get a free magazine and a free bag of coffee by clicking here. How does Perfect Moose detect what kind of milk is in the pitcher? Click here to find out. See the Mikafi countertop roaster at the Thermoplan stand (6637) at World Of Coffee Brussels. Not attending? See it here. What does the Marco MilkPal look like to you? WALL-E? Something Steve Jobs would be proud of? Check it out here.

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Guatemala's Inconvenient Truth, Part 2: Who does specialty serve?

Guatemala's Inconvenient Truth, Part 2: Who does specialty serve?

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 ...

20 Huhti 28min

Guatemala's Inconvenient Truth, Part 1: Whose land is it anyway?

Guatemala's Inconvenient Truth, Part 1: Whose land is it anyway?

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 episo...

20 Huhti 43min

Surrogates: Anything but the coffee

Surrogates: Anything but the coffee

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...

2 Maalis 46min

Mother Coffee: The history and heritage of Ethiopia's wild coffee forests

Mother Coffee: The history and heritage of Ethiopia's wild coffee forests

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 th...

9 Helmi 48min

We Built This City…On Coffee: Hamburg and the making of Europe's coffee trade

We Built This City…On Coffee: Hamburg and the making of Europe's coffee trade

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 ...

5 Tammi 50min

Introducing: Series Three of A History of Coffee

Introducing: Series Three of A History of Coffee

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 sin...

29 Joulu 20252min

Coffee Quality, Part 3: When the “quality” myth hits the farm

Coffee Quality, Part 3: When the “quality” myth hits the farm

For twenty years, the 2004 cupping form profoundly shaped the specialty coffee world.   But on the hillsides of coffee farms, some of the form’s byproducts have been disadvantaging producers.    In th...

8 Joulu 202530min

Coffee Quality, Part 2: How “quality” became a myth

Coffee Quality, Part 2: How “quality” became a myth

If you ask two specialty professionals what makes a high-quality coffee, you’ll likely get a surprisingly consistent answer: clean, sweet, juicy, bright. To an outsider, they would be forgiven for thi...

8 Joulu 202525min

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