FIVE TWO. / Apps

A closer look
at your coffee.

Tools for asking better questions, testing an idea and understanding what happens in the cup.

01 / Coffee tools · Beta

Grind Study.

Coffee particle measurement / By FIVE TWO.

See your grind in a little more detail. Use a photo and a known-size coin or ruler to estimate particle sizes, explore their distribution and compare your own grinder settings.

Photograph, calibrate and measure on your device.
Review detected particles and export a CSV.
Save reference measurements and grinder profiles locally.

Your photos are processed in your browser, not uploaded. Saved measurements stay in this browser. This experimental tool is not laboratory validated; lighting, focus and touching particles affect results.

Open Grind Study

Try the built-in synthetic demo first, or use your own photograph. No account needed.