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Jonathan Gagné on Astrophysics, Coffee, & The Physics of Espresso
1 hour 22 minutes Posted Sep 17, 2025 at 3:37 pm.
Jonathan Gagné is producing some of the best work in the world in terms of increasing our understanding and appreciation of coffee. And his new book, The Physics of Espresso, is incredibly smart, impressively easy to understand, and…fun! So it was an honor to have Jonathan on to talk about astrophysics, boulders, dust, soup, crema, headspace, and more.  We Want to Hear from You!Have a topic, craft category, or craft company you’d like to see us cover? Email us here to share those or any other thoughts you have about CRAFTED.RELATED LINKS:Blister Craft CollectiveBecome a BLISTER+ MemberThe Physics of EspressoThe Physics of Filter CoffeeInstagram: Jonathan’s Gagné Jonathan’s site: coffeeadastra.comTOPICS & TIMES:Jonathan’s Work in Astrophysics
Brown Dwarfs
Origins of His Interest in Coffee
Filter Coffee & Espresso: His 2 Books
Is This the Most Interesting Time in Espresso?
Soup & Low-Pressure Espresso
Crema
Grinders (Weber EG-1 & Turin DF83 v2)
Burr Size: Is Bigger Always Better? 50:14)Boulders
Headspace
Puck Screens & Other Variables
Baskets & Bed Depth: 49mm vs 58mm
Jonathan’s website: Coffee ad Astra
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Jonathan Gagné is producing some of the best work in the world in terms of increasing our understanding and appreciation of coffee. And his new book, The Physics of Espresso, is incredibly smart, impressively easy to understand, and…fun! So it was an honor to have Jonathan on to talk about astrophysics, boulders, dust, soup, crema, headspace, and more.  We Want to Hear from You!Have a topic, craft category, or craft company you’d like to see us cover? Email us here to share those or any other thoughts you have about CRAFTED.RELATED LINKS:Blister Craft CollectiveBecome a BLISTER+ MemberThe Physics of EspressoThe Physics of Filter CoffeeInstagram: Jonathan’s Gagné Jonathan’s site: coffeeadastra.comTOPICS & TIMES:Jonathan’s Work in Astrophysics (2:54)Brown Dwarfs (4:54)Origins of His Interest in Coffee (12:07)Filter Coffee & Espresso: His 2 Books (17:29)Is This the Most Interesting Time in Espresso? (26:45)Soup & Low-Pressure Espresso (28:00)Crema (34:02)Grinders (Weber EG-1 & Turin DF83 v2) (38:28)Burr Size: Is Bigger Always Better? 50:14)Boulders (58:26)Headspace (1:03:23)Puck Screens & Other Variables (1:08:19)Baskets & Bed Depth: 49mm vs 58mm (1:14:21)Jonathan’s website: Coffee ad Astra (1:16:33)SEE OUR OTHER PODCASTS:Blister CinematicBikes & Big IdeasGEAR:30Blister Podcast Hosted on Acast. See acast.com/privacy for more information.