A Sourdough Starter Log That Tells You When to Feed

A healthy sourdough starter is a living culture, and the single biggest cause of weak rise and flat loaves is losing track of feedings. SourdoughLog is a free, private starter log that records every feeding so you always know where your culture stands.

Open the free starter log →

What you can track per feeding

• Date & time — so the app can show "last fed: N hours/days ago".
• Flour type — bread, all-purpose, whole wheat, rye or spelt. Different flours ferment at different speeds.
• Feed ratio — 1:1:1, 1:2:2, 1:5:5 and so on. Bigger ratios slow fermentation and buy you time between feedings.
• Peak rise time — how many hours your starter took to double. Tracking this is the clearest signal of strength and activity.
• Notes — smell, bubble count, surface, rise height. Patterns emerge fast once you write them down.

Know when your starter needs feeding

SourdoughLog reads your last feeding and flags when your culture likely needs feeding again — roughly past a day at room temperature, or about a week in the fridge. Switch between room-temperature and fridge storage and the timing adjusts. No more guessing whether that jar on the counter is hungry, peaked, or already collapsing.

Why log it at all?

Once you can see your peak rise times trending down to four or five hours, you know your starter is at its strongest and ready to bake. If rise slows or the smell turns sharp and acetone-like, your feeding history tells you exactly what changed — flour, ratio, or schedule — so you can fix it instead of starting over. Everything stays on your device; there is no account and it works offline.

Start logging feedings — free →