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Advanced Techniques

How to Scale a Sourdough Recipe to Two Loaves

Double ingredients cleanly with baker's math, and know what not to double (time, salt mistakes, pan size).

Maya Patel2 min read

Scale sourdough to two loaves by doubling flour, water, salt, and starter by weight — do not double fermentation time; watch dough temperature because bigger batches can run warmer.

What doubles / what doesn't

DoubleDon't blindly double
Flour, water, salt, starterBulk time
Mix bowl capacity needsFold intensity (may need more organization)
Number of basketsBake temp (same)

Two loaves may need staggered oven bakes unless you have two pots or a large deck setup.

Batch temperature note

Bigger dough masses hold heat. Use slightly cooler water to hit the same DDT. Fermentation can finish faster than your single-loaf notes suggest — watch the dough.

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

When in doubt, give fermentation a fair window before blaming your oven or your scoring.

Hydration staging

Wet dough becomes manageable when water is added in stages after strength exists. If you dump 85% water on weak flour on day one, you are practicing frustration, not ciabatta.

One variable rule

Lamination week is not also ancient-grain week and 48-hour retard week. Stack techniques after each one is boringly reliable.

Field notes

The fastest way to improve at this is to pair the technique with the same base dough for several weekends. If results swing wildly, stabilize feeding and room temperature for a week so you can see the signal again. Whole-grain flour, warmer kitchens, and higher starter percentages all compress timelines — expect that interaction. 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

Halving a recipe?

Same idea in reverse; very small batches are more sensitive to rounding errors on salt.

Starter percentage when scaling?

Keep the same % unless you want a timing change.

One big loaf instead of two?

Increase bake time and verify internal temperature; shaping differs.

SourdoughAI recipe scaling keeps percentages honest when you jump from one loaf to many.