đĨ Just Dough It
v3.0
Science-driven fermentation, adjusted to your kitchen.
WHAT IT DOES
đĨ
Sourdough Bread Calculator
Recipe builder with flour blends, hydration targets, and temperature-adjusted fermentation timelines. Auto-detects your local weather and water hardness.
đĨ
Yogurt Calculator
10 heirloom starter cultures (thermophilic & mesophilic), milk type picker, incubation timeline, yield & nutrition estimates. Use your last batch as starter.
đĢ
Lacto-Fermentation Calculator
7 ferment styles, 25+ vegetables, salt calculator with volume conversion for 10 salt types, and day-by-day LAB succession timeline.
HOW IT WORKS
Just Dough It uses your location to detect ambient temperature (via Open-Meteo) and water hardness (by region), then adjusts fermentation timelines accordingly. All calculations use Q10 kinetics â the same model used in food science â to predict how temperature affects fermentation rate.
The calculation engine is pure TypeScript â no server, no API calls for the math. Everything happens on your device.
PRIVACY
No accounts. No tracking. No cloud storage.
Your recipes and starter logs stay on your device. Location coordinates are sent only to fetch weather (Open-Meteo) and geocode your city (OpenStreetMap) â never stored or shared.
ACKNOWLEDGEMENTS
Weather data: Open-Meteo â free, open-source weather API.
Geocoding: OpenStreetMap / Nominatim
Flour data: Shipton Mill
Yogurt cultures: Freshly Fermented
Built with Expo + React Native
Open source under the MIT License.
github.com/tuncoglu/SourDough