Fruit juice or creamy almonds? Your guide to controlling cold brew flavors

from Filter Stories - Coffee Documentaries · host James Harper

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 explains why cold brew plays by its own playbook. And I bring you in on the brewing secret that can turn your brews from fruit juice to nutty creaminess. --------------- 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 Explore TODDY’s cold brewing kits Go deeper into the science of cold brew Do a Certificate of Advanced Studies with the Coffee Excellence Centre Read Jiaxin (Jessie) Liang’s equilibrium extraction SCA 25 article and her published article Discover all of UC Davis' cold brew research through the Coffee Science Foundation Learn how to do a cold brew cupping with Toddy Follow Filter Stories on Instagram for my infographics 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. Support hundreds of thousands of coffee farmers with Fairtrade. Discover how here. 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. "Seize the Moment", the tabletop device from DiFluid that guides your customers through their coffee as it cools. Use code FILTER and this link to get 10% off.

What this episode covers

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 explains why cold brew plays by its own playbook. And I bring you in on the brewing secret that can turn your brews from fruit juice to nutty creaminess. --------------- Please spread the word about The Science of Coffee!Leave a 5 star rating on SpotifyFollow me on Instagram and tag me in an Instagram storyWrite a review on Apple Podcasts Discover how I make these Filter Stories episodes by subscribing to my Substack newsletterExplore TODDY’s cold brewing kits Go deeper into the science of cold brew Do a Certificate of Advanced Studies with the Coffee Excellence Centre Read Jiaxin (Jessie) Liang’s equilibrium extraction SCA 25 article and her published article Discover all of UC Davis' cold brew research through the Coffee Science Foundation Learn how to do a cold brew cupping with Toddy Follow Filter Stories on Instagram for my infographics 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.Support hundreds of thousands of coffee farmers with Fairtrade. Discover how here. 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."Seize the Moment", the tabletop device from DiFluid that guides your customers through their coffee as it cools. Use code FILTER and this link to get 10% off.

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Fruit juice or creamy almonds? Your guide to controlling cold brew flavors

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This episode is 46 minutes long.

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This episode was published on February 16, 2025.

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