Ćejf

Ćejf (pronounced "chayf") is a free coffee dial-in and diagnostics app for home baristas. Built by a home barista for fellow home barista enthusiasts, it was inspired by ćejf — a Bosnian word, deeply rooted in Balkan culture, for the slow, unhurried pleasure of enjoying coffee. Whether you're chasing the perfect espresso shot or refining your pour over, Ćejf is two tools in one: a dial-in tracker to log and perfect your settings, and a diagnostic engine that connects what you taste to what you should change — grind size, dose, yield, temperature, and technique — with clear, specific recommendations. DIAGNOSE YOUR SHOT Tell Ćejf how your coffee tasted and get an immediate recommendation. The app understands the difference between bitterness from over-extraction and bitterness from stale beans. It knows that sour and bitter together usually means channeling, not a grind problem. Recommendations adapt to how strong each taste is and check your shot history before suggesting a change you've already tried. DIAL IN FASTER Adjust grind, dose, yield, temperature and pressure, then log the result. Ćejf tracks your progress for each bag of beans so you can find and return to your best settings without guesswork. ORIGIN-LINKED DIAGNOSTICS Set your bean's country, region, variety, and processing method. Ćejf factors in bean density, extraction speed, and flavour profile. An Ethiopian natural gets different advice than a washed Brazilian at the same roast. QUICK OR FULL MODE New to espresso? Quick mode asks three questions and gives one clear answer. Want depth? Full mode offers compound-level diagnostics, multi-taste selection with intensity, puck condition analysis, and complete shot tracking. TRACK EVERY SHOT Log shots with full parameters, taste notes, and puck condition. Filter your history, spot trends, and find your best settings for each bag. Log shots without rating them when you just want to track. EQUIPMENT SUPPORT Set up your full kit — espresso machine, grinder, portafilter, basket, and pour over gear. Ćejf includes detailed grind reference ranges for popular grinders with precise click-by-click adjustment, and adapts its recommendations to your specific setup. Maintenance reminders help you keep on top of backflushing, descaling, and burr cleaning so your gear performs at its best. ESPRESSO AND POUR OVER Switch between espresso and pour over modes. Pour over includes recipe variations from well-known methods, with brewer-specific guidance for V60, Chemex, AeroPress, and French Press. LEARN AS YOU BREW A built-in Learn section covers extraction science, taste compounds, bean origins, processing methods, pressure and OPV, and puck preparation — written in plain language. YOUR DATA STAYS WITH YOU No account. No cloud. No ads. No tracking. Everything is stored on your device. Free, forever. Ćejf is built by a home barista, for home baristas — a focused tool to dial in, diagnose, and understand your coffee, one shot at a time.