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← Burr geometry matters more than burr size for how uniform and unimodal a grinder's output is.
14 connected korrents · 13 moments from 1 Mar 1999 to 19 Oct 2026.
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design
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mental models Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: Burr geometry matters more than burr size for how uniform and unimodal a grinder's output is. Burr geometry matters more than burr size for how uniform and unimodal a grinder's output is. Last stated 3 years ago
21 Sept 2023
JG
Jonathan Gagné — holds since 2023-09-21 — tap for who they are
Same subject: Conical burrs tend to be less unimodal and less uniform than flat burrs, though the two overlap a lot. — tap to centre the map on it Conical burrs tend to be less unimodal and less uniform than flat burrs, though the two overlap a lot. Last stated 3 years ago
21 Sept 2023
JG
Jonathan Gagné — holds since 2023-09-21 — tap for who they are
Same subject: Grinders that produce fewer fines (more unimodal) also tend to produce more uniform particle sizes. — tap to centre the map on it Grinders that produce fewer fines (more unimodal) also tend to produce more uniform particle sizes. Last stated 3 years ago
21 Sept 2023
JG
Jonathan Gagné — holds since 2023-09-21 — tap for who they are
Same subject: Flat burr grinders tend to deposit ground coffee preferentially on one side of the portafilter, an effect worsened by higher grinder RPM. — tap to centre the map on it Flat burr grinders tend to deposit ground coffee preferentially on one side of the portafilter, an effect worsened by higher grinder RPM. Last stated 4 years ago
16 Jul 2022
JG
Jonathan Gagné — holds since 2022-07-16 — tap for who they are
Same subject: Poorly aligned grinder burrs are far more common than the coffee community acknowledges. — tap to centre the map on it Poorly aligned grinder burrs are far more common than the coffee community acknowledges. Last stated 6 months ago
4 May 2026
SR
Scott Rao — holds since 2026-05-04 — tap for who they are
Same subject: The size of a person's circle of competence matters less than knowing when they are approaching its perimeter. — tap to centre the map on it The size of a person's circle of competence matters less than knowing when they are approaching its perimeter. Last stated 13 years ago
1 Dec 2013
SP
Shane Parrish — holds since 2013-12-01 — tap for who they are
Same subject: A $1,299, 100-gram pair of slip-on glasses seems far more enticing than a $3,699, 700-gram headset strapped to the face. — tap to centre the map on it A $1,299, 100-gram pair of slip-on glasses seems far more enticing than a $3,699, 700-gram headset strapped to the face. Last stated a month ago
24 Sept 2026
MS
M.G. Siegler — holds since 2026-09-24 — tap for who they are
Same subject: A baby-step version of eval-driven design is to sketch out 10 to 20 hero flows and run the feature or interaction through them to see where it falls apart. — tap to centre the map on it A baby-step version of eval-driven design is to sketch out 10 to 20 hero flows and run the feature or interaction through them to see where it falls apart. Last stated 2 months ago
9 Sept 2026
EB
Ed Bayes — holds since 2026-09-09 — tap for who they are
Same subject: A blank chat box is lazy: it violates the first rule of a good user experience, that it is obvious what you can do. — tap to centre the map on it A blank chat box is lazy: it violates the first rule of a good user experience, that it is obvious what you can do. Last stated a year ago
12 May 2025
JZ
Julie Zhuo — holds since 2025-05-12 — tap for who they are
Same subject: A browser works better as a single window than as multiple separate windows. — tap to centre the map on it A browser works better as a single window than as multiple separate windows. Last stated 2 months ago
15 Sept 2026
CC
Chris Coyier — holds since 2026-09-15 — tap for who they are
Same subject: A design has to be kept simple for reliability and intellectual control, but nobody yet knows how to reach simplicity systematically. — tap to centre the map on it A design has to be kept simple for reliability and intellectual control, but nobody yet knows how to reach simplicity systematically. Last stated 28 years ago
1 Mar 1999
ED
Edsger W. Dijkstra — holds since 1999-03-01 — tap for who they are
Same subject: A designer's edge now is pulling things back, making them simpler and more understandable, because everyone can kind of execute right now. — tap to centre the map on it A designer's edge now is pulling things back, making them simpler and more understandable, because everyone can kind of execute right now. Last stated 3 months ago
29 Jul 2026
CD
Charlie Deets — holds since 2026-07-29 — tap for who they are
Same subject: A product's craft probably comes down to whether it works without pain and how it makes people feel. — tap to centre the map on it A product's craft probably comes down to whether it works without pain and how it makes people feel. Last stated 2 months ago
10 Sept 2026
RS
Robby Stein — holds since 2026-09-10 — tap for who they are
Same subject: A shadow in an interface implies a light source, so an elevated element needs a highlight where the light falls, not just a drop shadow. — tap to centre the map on it A shadow in an interface implies a light source, so an elevated element needs a highlight where the light falls, not just a drop shadow. Last stated 2 years ago
21 Feb 2025
TC
Thiago Costa — holds since 2025-02-21 — tap for who they are
Same subject: A subwoofer for music should reinforce the bass already in the recording, without adding bloat or artificial bass. — tap to centre the map on it A subwoofer for music should reinforce the bass already in the recording, without adding bloat or artificial bass. Last stated 2 weeks ago
19 Oct 2026
SH
Steve Huff — holds since 2026-10-19 — tap for who they are
At the centre
Burr geometry matters more than burr size for how uniform and unimodal a grinder's output is.
Holds Read this korrent →
Conical burrs tend to be less unimodal and less uniform than flat burrs, though the two overlap a lot.
Holds
Grinders that produce fewer fines (more unimodal) also tend to produce more uniform particle sizes.
Holds
Flat burr grinders tend to deposit ground coffee preferentially on one side of the portafilter, an effect worsened by higher grinder RPM.
Holds
Poorly aligned grinder burrs are far more common than the coffee community acknowledges.
Holds
The size of a person's circle of competence matters less than knowing when they are approaching its perimeter.
Holds
A $1,299, 100-gram pair of slip-on glasses seems far more enticing than a $3,699, 700-gram headset strapped to the face.
Holds
A baby-step version of eval-driven design is to sketch out 10 to 20 hero flows and run the feature or interaction through them to see where it falls apart.
Holds
A blank chat box is lazy: it violates the first rule of a good user experience, that it is obvious what you can do.
Holds
A browser works better as a single window than as multiple separate windows.
Holds
A design has to be kept simple for reliability and intellectual control, but nobody yet knows how to reach simplicity systematically.
Holds
A designer's edge now is pulling things back, making them simpler and more understandable, because everyone can kind of execute right now.
Holds
A product's craft probably comes down to whether it works without pain and how it makes people feel.
Holds
A shadow in an interface implies a light source, so an elevated element needs a highlight where the light falls, not just a drop shadow.
Holds
A subwoofer for music should reinforce the bass already in the recording, without adding bloat or artificial bass.
Holds