The Speed of Heat: How to roast more coffee, faster!

The Speed of Heat: How to roast more coffee, faster!

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 out. Join us as we test-drive an industrial tangential roaster where first crack remind me of fireworks crackers.

We also see the whale-sized roaster so massive it’s worth you a Guinness World Record.

We have the technology today to roast coffee faster than ever, so why aren’t we all roasting at recording-breaking speeds?

---------------

Please spread the word about The Science of Coffee! Leave a 5 star rating on Spotify Follow me on Instagram and tag me in an Instagram story Write a review on Apple Podcasts

Discover how I make these Filter Stories episodes by subscribing to my Substack newsletter

Check out the Probat roasters mentioned in this episode:

Emmerich Spherical Roaster - "Pink Hydrant"

Large ball roaster - “Sputnik in a pizza oven”

G45 early drum roaster - “Old school steam train”

Early tangential roaster

Sample tangential roaster - "Shoebox"

Neptune 4000, the largest drum roaster in the world! - "The whale"

And there are lots of other specialty roasters from Probat I didn't have time to showcase, including their new hydrogen powered roasters. See them all for yourself!.

Theodor von Gimborn's wikipedia page

Go deeper into the science of roasting

Read Mark Al-Shemmeri’s coffee roasting blog

Do a Certificate of Advanced Studies with the Coffee Excellence Centre

Explore Barista Hustle's online roasting learning

Learn more from Morten Münchow and his coffee roasting courses

Read Morten’s paper in collaboration with the University of Copenhagen on Roasting Conditions and Coffee Flavour

Follow Filter Stories on Instagram for my infographics

Learn more about first crack on my episode Coffee Roasting, Part 1: How heat transforms coffee beans

Season 3 is made possible by these leading coffee organizations:

The Coffee Quest | BWT | TODDY | Algrano | Probat

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. Visiting World of Coffee San Diego? Pull a shot on the gorgeous Slayer Steam Single What does the Marco MilkPal look like to you? WALL-E? Something Steve Jobs would be proud of? Check it out here.

Episoder(76)

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 Mar 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 Feb 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 Jan 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 Des 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 Des 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 Des 202525min

Coffee Quality, Part 1: The birth of specialty coffee flavours

Coffee Quality, Part 1: The birth of specialty coffee flavours

For the longest time, coffees were dull and bitter. But then a small group of pioneers changed the world.    In this episode, we travel back to the 1960s and ’70s to meet the trailblazers who realised...

8 Des 202523min

How specialty coffee woke up to water’s role in flavour

How specialty coffee woke up to water’s role in flavour

For the longest time, the coffee community only cared about water’s impact ruining espresso machine boilers and kettles. But what about water’s impact on coffee flavour?   In this episode, I tell the ...

28 Jul 202525min

Populært innen Vitenskap

fastlegen
rekommandert
tingenes-tilstand
jss
rss-rekommandert
sinnsyn
forskningno
liberal-halvtime
fjellsportpodden
rss-nysgjerrige-norge
kvinnehelsepodden
nordnorsk-historie
villmarksliv
vett-og-vitenskap-med-gaute-einevoll
hva-er-greia-med
smart-forklart
nevropodden
tidlose-historier
aldring-og-helse-podden
rss-radium