Sourdough lab solution

Every starter behaves differently, and memory is a poor instrument. Levain Ledger is a private journal for the jar on your counter: you write down what you see, and it tells you what that means. Log the reading, not the guess Each entry takes a few seconds. Room and starter temperature, pH, rise height, hours to peak, how long it held at the top, a vigour score, total weight — record everything you measured, or only the two things you actually checked. The app never invents a value to fill a gap. A verdict instead of a number Every jar gets a status — Active, Needs attention, Off, or Keep watching — with the reason spelled out: pH has drifted too low, the jar is running hot, or the rise has stalled. If you are starting from flour and water, Levain Ledger tracks the four stages a new starter passes through — dormant, false rise, acidifying, then mature — and only calls it mature after…