A coffee journal that learned to talk.

Why I built it

I kept every recipe, bean, and tweak in a messy notes app — and still found myself fumbling with a phone, wet hands, and a running timer mid-pour. Reading a recipe while pouring is a terrible interface. I wanted something that talked me through the brew the way a good barista would: tare now, pour to 120 grams in a spiral, wait until 1:30.

So BrewSense started as a coffee journal — recipes, tasting notes, and a growing catalog of Indian specialty beans — and grew into a hands-free voice brew coach that guides each step in real time.

How it works

Every recipe maps to a structured sequence of brew steps — each with a phase, a water target, a timing window, a scale action, and a single spoken instruction. The coach speaks only the current step, never the whole recipe, so you always know exactly what to do right now. When you finish, you log how it tasted and BrewSense suggests concrete adjustments for the next cup.

The voice starts on your browser's built-in speech engine so it works instantly, then upgrades itself to Kokoro — an open text-to-speech model that runs entirely on your device. One small download, then natural narration that's free forever and works offline.

The coffee

I drink mostly specialty Indian coffee — estates like Ratnagiri, Attikan, Riverdale, and Baarbara, across washed, natural, and honey processes — you can browse them all on the bean shelf. Try the voice brew coach with one of them.