Quick feed, then edit later
Reuse your usual quantities and save immediately—even offline. Add the rise, peak, aroma, or photo when you have them.
Your starter, understood
Turn a living jar into a rhythm you can trust.
Log a feed in seconds, predict the next peak from your own history, and follow every loaf from mix to bake.
Private account · Works on iPhone, Android, and desktop
● ON SCHEDULEDottie is fed and fermenting.
6:15 PMLikely peak8 daysCurrent streak
10-secquick feeds
Offlinephone logging
Privatecustomer accounts
Usefulpersonal patterns
A calm fermentation cockpit
Everything worth remembering. Nothing that gets in the way.
Your peak forecast
Jarchemy weighs similar flour, ratio, room temperature, and recent results to estimate today’s likely peak window.
A true photo timeline
See the starter change over time, not just a list of numbers. Photos stay private and are compressed for the phone.
Every loaf on the clock
Time mix, bulk, proof, and bake. Keep hydration, dough temperature, notes, and the final score together.
Reminders in your own voice
Pick the days, time, and exact message. Installed-phone alerts work alongside a reliable due-now view.
Data that remains yours
Separate private accounts, portable CSV and JSON backups, and an account deletion control that removes your records.
Free counter tools
Get the number. Understand what it means.
These calculators work without an account. Jarchemy’s in-app versions can flow directly into a feeding or bake session.
Whole-dough hydration
72.7%
Versatile sourdough rangeTarget starter build
150g
1:2:2 feeding ratio30.0gstarter60.0gflour60.0gwater
Simple beta pricing
Begin for free. Grow with Jarchemy.
Use the private journal, quick feeds, photos, reminders, calculators, and bake sessions during the beta. Plus memberships are being prepared for advanced history and storage.
$0 while in beta
- Private starter journal
- Offline quick feeds
- Peak forecasts and bake timers
- Photo timeline and exports
Make the next feed count