Track protein and hydration percentages, manage recipes, log bake times, and use the reverse bake timer to nail every step — from autolyse to oven spring.
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Everything a sourdough baker needs to understand, improve, and perfect their craft — bake after bake.
Set when you want bread done and the timer works backwards, scheduling every step with reminders so you never miss a fold or a proof.
Track and calculate hydration percentages across your recipes. Understand how water ratios affect your crumb and crust.
Log protein percentages for every flour you use. Compare results to dial in the perfect flour blend for your loaves.
Save and organize your sourdough recipes. Adjust ingredients, duplicate favorites, and build your personal formula library.
Record every bake with notes, photos, ratings, and full details. Look back to see what worked and refine your process.
Your recipes, bake logs, and timer presets sync across all your iOS devices via iCloud. Start planning on your phone, bake from your iPad.
A clean, purposeful interface built for flour-dusted hands and busy bake days.
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Bake Timer
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Recipe Builder
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Bake Log
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Hydration Calc
Tell Crust Log when you want your bread done. It works backwards, scheduling every step from starter feed to oven spring — with reminders so you never miss a beat.
Enter your desired finish time and Crust Log automatically schedules every step in reverse.
Get notified before each step — stretch and fold, shaping, preheat, steam — so nothing slips through the cracks.
Every recipe is different. Adjust step durations, add or remove stages, and save timer presets for your go-to loaves.
Bread done by 6:00 PM
Every bake is an experiment. Log hydration, protein, fermentation, and oven details to see exactly what makes your best loaves tick.
Great bread isn't an accident — it's built one bake at a time.
Crust Log — your sourdough companion
Download Crust Log and bring precision and consistency to every loaf you bake.
Requires iOS 17.0+. Free with optional premium features.