Your Sourdough Journey
Starts Here.
Create, scale, and share bread recipes with built-in baker's math. Join a community of bakers who fork, rate, and improve each other's formulas.
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Real recipes from real bakers. Fork any recipe to make it your own.
Built for Serious All Bakers
Every tool you need to design, refine, and share your bread formulas.
Baker's Math & Scaling
Auto-calculated baker's percentages and hydration. Scale any recipe by total weight or number of loaves with one click.
Fork & Improve
Love a recipe but want to tweak the hydration? Fork it, adjust the formula, and save your version linked back to the original.
Starter Tracking
Log feedings, monitor rise times, and track your culture's health over time. Dial in the perfect feeding schedule backed by your own data.
Bake Logs
Track every bake with ingredient snapshots, process observations, taste profiles, and photos. Compare results across sessions to refine your technique.
Taste Profiles
Map your bread's flavor across 8 axes — from acidity and roast notes to fruitiness and fermentation aromas.
Bake Streaks
Build your baking streak, hit milestones, and stay motivated. See how many weeks in a row you've fired up the oven.
See Baker's Math in Action
Drag the slider to adjust hydration and watch the formula update instantly.
Lower hydration (60–65%) makes a stiffer dough for sandwich breads. Higher hydration (80–90%) creates the open, airy crumb of artisan loaves.
Basic Sourdough
72% hydrationWhat is baker's math?
The professional baker's language for writing bread recipes that scale.
Baker's math (also called baker's percentages) is a way of writing recipes where every ingredient is expressed as a percentage of the total flour weight. Flour is always 100%, water is the hydration percentage, salt is usually 2%, and a sourdough starter typically lands somewhere between 15–25%. Once a formula is written this way, you can scale it from a single loaf to a hundred without recalculating ratios — the recipe stays the same, only the absolute weights change.
For sourdough specifically, hydration is the single most important number in the recipe. A 60% hydration dough is stiff and easy to shape — ideal for sandwich loaves and bagels. An 80% hydration dough is wet, sticky, and rewards stretch-and-fold technique with a glossy, open crumb. Pan de Cristal pushes hydration to 100% — equal weights of flour and water — which produces the signature glass-like crust the bread is named for. Once you understand hydration as a number, every bread style fits into a single mental map.
Two recipes for "country sourdough" might use 500g and 850g of flour respectively, but if both are written at 78% hydration with 20% starter and 2% salt, you can see at a glance that they're the same formula at different batch sizes. This is why every professional bakery, every bread textbook, and every serious recipe development workflow uses baker's percentages — and why Loafly Day calculates them automatically for every ingredient you enter.
Suppose you want to bake a 1,000g loaf at 75% hydration with a 20% sourdough starter and 2% salt. Total percentages add up to 100% (flour) + 75% (water) + 20% (starter) + 2% (salt) = 197%. Divide your target weight by that total to get the flour quantity:
Multiply by each percentage and you get 381g water, 102g starter, 10g salt. Loafly Day does this in real time as you type — and lets you scale to any target weight or loaf count with one click.
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- Up to 5 private recipes
- 3 bake logs per month
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- Ratings & comments
- Starter tracking
- Ingredient library
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- Unlimited recipes
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Frequently asked questions
Everything you need to know about Loafly Day, baker's math, and sourdough.
Yes. The Free tier covers up to 50 public recipes, 5 private recipes, and 3 bake logs per month — enough for most home bakers. Premium (€1.99/month) unlocks unlimited recipes and bake logs, custom taste profiles, an ingredient library, and media-link attachments. New users can try Premium free for 7 days — cancel anytime before the trial ends and you won't be charged. No ads on either tier.
Forking is borrowed from open-source software: it means branching a public recipe into your own version that stays linked to the original. If a baker posts a 78% hydration country sourdough and you want to try it at 82% with 30% whole wheat, you fork it, edit your copy, and save — the original baker still gets credit for the formula, and your version becomes part of the recipe's family tree. It's the bread equivalent of "I made it your way, then I made it mine."
A calculator converts numbers; Loafly Day stores recipes. With a calculator you punch in flour and water and walk away with a one-time answer. On Loafly Day every recipe is a saved, scalable, shareable formula with full process steps, ingredient snapshots, taste profiles, photos, and a fork history. The baker's math is built into the recipe model itself, not bolted on as a side widget — so scaling, hydration adjustments, and conversions happen on every recipe automatically.
Absolutely. Baker's math applies to every flour-based bread — baguettes, brioche, croissants, ciabatta, focaccia, bagels, pretzels, stollen, panettone, even gluten-free formulas. The platform has 15 categories covering naturally leavened, lean yeasted, enriched, rye, whole grain, laminated, flatbreads, and more. Sourdough is the gateway, but the tooling works for anything you bake.
Each starter has its own log: feedings (time, flour, water, ratio), rise observations, and notes. Over weeks you build a record that tells you when your culture peaks, how it responds to different flours, and how its activity shifts with temperature. Many bakers use the data to dial in a feeding schedule that matches their bake day — e.g. "feed at 9pm, ready to mix at 9am." It works for any flour, any hydration, and any number of cultures.
No. Every recipe is private by default. You choose per recipe whether to keep it private, share it with a link, or publish it to the community feed where other bakers can rate, comment, and fork it. Forking a public recipe creates a new recipe owned by you — the original baker can't see your edits unless you choose to publish your version.
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