From bean to data
Drag the cards around — explore what goes into every measurement.
How It Works
Get a calibration card
Download and print, or use a pre-printed Shot In The Dark card.
Spread your grounds
A thin, even layer on the white measurement zone. Less is more.
Photograph from above
Keep the camera perpendicular. Make sure all four corner markers are visible.
Get your results
Particle sizes in microns, brew method matches, and a full distribution breakdown.
Precision in Every Particle
Snap & Analyze
Photograph your coffee grounds on the calibration card. Computer vision does the rest.
Precision Calibration
Corner markers ensure accurate pixel-to-micrometer conversion every time.
Brew Method Match
See which brew methods suit your grind, with actionable adjustment advice.
Distribution Data
Full particle size distribution, D50 median, standard deviation and uniformity metrics.
Particle Map
Visualize every detected particle on a color-coded overlay of your original image.
Track Over Time
Save measurements to spot consistency trends and dial in your grinder.