Bubbo: Sourdough Starter

Grams, ounces or cups — pick once and every recipe, feed and temperature follows. Your starter, as a pet that visibly rises when you feed it and slumps when it doesn't.

Your sourdough starter is alive. Bubbo makes that visible.

Feed it and the creature domes and swells. Let it go hungry and it slumps and spreads — the same way the real jar on your counter does. Six life stages, from a nervous first week to a whiskered sage, each with feeding needs that genuinely change as the culture matures.

A STARTER THAT TELLS YOU WHEN IT'S HUNGRY Reminders on your schedule: daily on the counter, weekly in the fridge. Feeding ratios shift from 1:1:1 for a young culture up to 1:5:5 for a mature one, because a three-week-old starter cannot eat through what a six-month-old thrives on.

NO STARTER? GROW ONE A guided seven-day program from nothing but flour and water — including the quiet days around day four that make most people give up right before it works.

BAKES THAT RUN THEMSELVES Complete a step and its timer starts itself. Close the app; it will tell you when to come back. Sessions survive restarts, so a fourteen-hour cold proof is no more effort to follow than a twenty-minute rest.

GRAMS, OUNCES OR CUPS Pick your units once and every recipe, feeding and temperature follows. Grams stay visible alongside, so nothing is lost to rounding.

CITED, NOT VIBES A troubleshooting library where every entry links its source, graded so you can tell a real problem from sourdough just being sourdough. Some of it disagrees with the internet deliberately:

• The float test is not a readiness check — whole grain starters often sink at their peak. • A new starter going quiet around day four is progress, not failure. • Pink or orange streaking is the one sign that cannot be rescued.

IT COLLECTS NOTHING No account. No analytics. No ads. No location. No third-party SDKs. Reminders are generated on your phone, so there is no push server — and no servers at all. Bubbo works completely offline: on a plane, in a basement kitchen, indefinitely.