Ćejf — Coffee Dial-in & Diagnostics

STEP 1 OF 2

Your equipment

Select your machine and grinder so Ćejf can calibrate recommendations to your setup. You can skip this and set it up later in the Machine tab.

MACHINE

GRINDER

STEP 2 OF 2

Your coffee

Describe your current bag. You can always update this when you open a new one.

ORIGIN

ROAST

PROCESS

Ćejf

Espresso

🫘

Set up your coffee

Tap to add bean details

›

18g

Dose

36g

Yield

1:2.0

Ratio

1.0.0

Grind

28s

Time

93°C

Temp

tap to adjust

0:00

Ready

0s 25–35s 45s

How did it taste? Select all that apply

Log

Statistics

Your espresso journey at a glance.

Support Ćejf

Ćejf is free, and will stay that way. If it's helped you dial in a better shot, a tip or a few words of feedback means a lot to a solo builder.

Send feedback

Bug, suggestion, missing feature, or just letting me know how it's going — all welcome.

Buy me a coffee ☕

No pressure. If Ćejf saved you a few bad shots, a tip means a lot to a solo builder.

Opens Ko-fi · No account needed

Everything, free

✓Full diagnostic engine with origin-linked recommendations

✓Shot logging, history, statistics

✓Machine setup, maintenance reminders

✓Bean profiles, flavour wheel, bag history

✓Puck diagnostics, pour-over mode with recipes

✓AI label scanner — point camera at any coffee bag

✓AI shot notes interpretation

✓Your data stays on your device — no account, no cloud

About Ćejf

Ćejf (pronounced "chayf") is a Bosnian word for the slow, pleasurable enjoyment of something — particularly coffee. Built by a home barista frustrated by apps that only logged shots without explaining why they tasted wrong. Covers espresso and pour-over. Version 4. All feedback welcome.

GitHub r/espresso

Learn

Espresso science, technique and origins.