Virtual sourdough starter trainer
Rise & Grumble
Feed a starter, move it between warm, room, and fridge scenes, and learn why sourness, hunger, timing, and temperature matter before dough ever hits the bowl.
"It is sourdough, not a microwave."
A starter in a jar, with enough attitude to make the lesson stick.
Rise & Grumble turns starter care into a real-time training game. The first quest is simple: revive a neglected starter without rushing it.
Fermentation moves at starter speed.
Feedings, checks, peak windows, and recovery use elapsed time so users learn patience instead of tapping through fake progress.
Counter, warm spot, and fridge all matter.
Moving the jar changes future fermentation while the log keeps the past honest, helping users see why cold storage slows recovery.
Rise, sourness, and hunger are visible.
The graph shows how feeding ratio and temperature affect the starter, with plain-language lessons after checks and feedings.
Built to teach the starter habits new bakers keep guessing at.
Rise & Grumble is not a recipe calculator. It is the little training space before the recipe: what happens after a feeding, when to check for peak, why acid builds, and why the fridge is a pause button, not a rescue plan.
Two apps, one sourdough workflow.
Use Rise & Grumble to understand the starter. Use Sourdough Bulk Planner when it is time to plan bread, pizza, cold proofing, and bake alerts.