Brewster - Espresso Companion

Your personal espresso companion. Log your shots, calibrate your grinder, and systematically brew better espresso — fully offline and private.

Brewster helps you systematically improve your espresso — shot by shot.

Log your brew parameters, rate the result, and get immediate suggestions on what to adjust next. No more guessing whether to grind finer, change the dose, or adjust brew time.

FEATURES

• Brew logbook — Record grind setting, dose, yield, brew time, temperature, and pressure for every shot • Taste rating — Rate acidity, bitterness, body, sweetness, and overall impression • Smart correction — Get precise adjustment suggestions based on your results • Grinder calibration — Choose from 100+ grinders or set up your own, with grind size recommendations • Bean management — Save your beans with roast level, blend composition, and age tracking • Analysis — Spot trends and get tips to refine your technique • Transparent logic — Understand exactly why Brewster recommends a specific adjustment

PRIVACY

Brewster works completely offline. No accounts, no cloud, no trackers, no ads. Your data stays on your device. Export or delete it anytime.

Brewster is for anyone who takes their espresso seriously — from beginners with their first machine to experienced home baristas.