Sourdough Diary
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Better sourdough, one loaf at a time.

A guide for every bake, from starter to crust.

Download on the App Store Coming soon to the App Store
The bake screen: bulk fermentation with a countdown and the next fold.

Every stage, timed

One clock for each step. It rings when it's time.

Each step says what to do with your own grams, and how long it takes in your kitchen.

How a bake runs
The bake screen: bulk fermentation with a countdown and the next fold.

Knows when your starter peaks

It learns your jar, not an average one.

Tell it when your jar peaked, and the next prediction is closer.

More about the starter
Home: a named starter in its jar, and the time it will be ready.

Every loaf teaches the next

What went wrong, and the one thing to change.

Then bake it again, with that change already filled in.

A loaf's page: what went wrong, the likely cause, and what to change next time.

Every loaf, written down

A diary of everything you have baked.

Each finished loaf is pinned up as a polaroid.

More about the diary
The Pinnwand: finished loaves as polaroids, with their names and stars.

Say when you want bread. It works out the rest.

An example plan. Yours is worked out from your own starter and kitchen.

Tomorrow

Feed the starter

27 g starter, 54 g flour, 54 g water.

Tomorrow

At its peak

Ready half an hour before you mix.

Tomorrow

Mix

Flour and water first, then the starter.

Tomorrow

Bulk

Four hours on one clock, with the folds inside.

Tomorrow

Shape

Pre-shape, a rest on the bench, then the final shape.

Tomorrow

Into the fridge

A cold proof overnight.

The day after

Out of the oven

Scored, baked, and written down.

And everything around the bake

Starter School

Starting from flour and water? It walks you through the first days, including the one where most people give up.

The Library

Short pieces on why sourdough does what it does. The app links the right one when a loaf goes wrong.

Floury hands

Log a feeding through Siri, a widget or your Apple Watch.

The same bake on an iPad, with the list of loaves beside the running clock.

Madame Crumb will see you now

A fortune for every loaf.

Add a photo of the crumb and step into her tent. She deals the cards, turns one over and reads your loaf's future.

Madame Crumb, a jar with a teal cap and big eyes, at a candle-lit table with three tarot cards.

Your diary stays yours

It lives on your devices and in your own iCloud. Nobody else can read it, the developer included.

Open the app and start. Keep a backup file if you like. The whole policy is short, and it is here.

Your starter is waiting

For iPhone, iPad and Apple Watch, in English and German.

Download on the App Store Coming soon to the App Store