Advanced Techniques
Baker's Percentage Basics for Sourdough
Scale any loaf by treating flour as 100% — the math behind hydration, salt, and starter amounts.
Baker's percentage treats total flour as 100%, then expresses water, salt, and starter as percentages of that flour weight so recipes scale cleanly.
Core formula
Ingredient % = (ingredient weight ÷ total flour weight) × 100
Example: 500g flour, 350g water → 70% hydration. Salt at 10g → 2%. Starter at 100g → 20% (remember starter also contains flour and water).
Why bakers use it
- Scale from one loaf to many
- Compare recipes fairly
- Troubleshoot ('was salt actually 2%?')
- Adjust hydration without rewriting everything
Starter math gotcha
A 100% hydration starter that weighs 100g contributes roughly 50g flour and 50g water. Precise formulas add those into totals. For home baking, consistency matters more than decimal perfection — but knowing the gotcha prevents confusion.
How to practice without wasting flour
Advanced moves are easier when you isolate them. Keep a baseline country dough you trust, then apply one technique — longer autolyse, coil folds only, stiff levain, or double hydration — and compare crumb and handling notes. If the dough fights you, the technique is not "wrong"; it may be mismatched to flour strength or fermentation stage.
Integration with your schedule
A technique only sticks if it fits your life. Overnight retards, preferment builds, and staged mixes should map to when you are actually home. Write the clock first, then pick the method that supports it.
One thing to remember
Consistency beats intensity: a boring weekly routine outperforms chaotic heroic weekend bakes.
One variable rule
Lamination week is not also ancient-grain week and 48-hour retard week. Stack techniques after each one is boringly reliable.
Preferment intention
Build a levain when you need volume, flour character, or schedule control — not because a blog said every loaf requires one. Direct starter works for many excellent home breads.
Field notes
The fastest way to improve at this is to pair the technique with the same base dough for several weekends. Document one success in enough detail that you could hand the notes to a friend and they could reproduce it. If results swing wildly, stabilize feeding and room temperature for a week so you can see the signal again. Mastery looks like calm repetition, not a longer checklist of rare methods.
Also useful: weigh everything, preheat longer than you think, and cool fully before you judge crumb quality. Those three habits make every other tip more reliable.
Frequently asked questions
Is starter included in flour %?
In precise baker's math, yes — its flour portion counts toward total flour.
Do I need software?
A scale and notes are enough; calculators speed it up.
Volume cups in baker's %?
Don't — percentages assume weights.
The hydration calculator on sourdoughai.app pairs well with baker's math — then log the bake in the app.