Mark the starter level
Use the rubber band or marker you already put on the jar after feeding.
Rise Check
Starter jar reading
For new sourdough bakers
For new sourdough bakers who use rubber bands, phone photos, and community posts to decide whether to wait, feed, or bake.
A simple next-step card for the jar on your counter.
How it works
Use the rubber band or marker you already put on the jar after feeding.
Capture the jar when you think it has risen enough.
Rise percent, likely peak state, and whether to wait, feed, or bake.
The counter-top guess
Will it read my jar?
It helps answer the counter-top question: has my starter risen enough, is it still climbing, and should I wait, feed, or bake next?
Mark the starter level after feeding, then compare a later jar reading against that marker to get a simple rise and next-step card.
The result should include a confidence note, so a weak read does not pretend to be certain.
Starter timing changes with temperature, flour, feeding ratio, and starter strength. A timer tells you elapsed time; this helps read the jar now.
Get notified
Leave your email and tell us what makes your starter hardest to judge.