Bakers Percent

Researched sourdough guides

Sourdough, worked out.

Clear guides to sourdough timing and baker's math, with the published source behind every number linked on the page, plus free calculators that do the arithmetic for you.

  • Every number cited
  • No cookies, no ads
  • Free calculators

Start here

New to sourdough? Follow these three guides in order.

  1. Make and feed a starterA day-by-day plan and feeding ratios that fit your schedule.
  2. Learn baker's percentagesRead any recipe as percentages and scale a loaf.
  3. Bake your first weekend loafFeed Friday, mix Saturday, bake Sunday, with a free printable.

Guides

Each guide compares published sources and links every one of them at the end of the page.

Free calculators

Small tools that run in your browser and are unit-tested against published worked examples.

What's in the holiday schedule

Coming soon · $6

The Sourdough Schedule Pack

A 7-page printable PDF: weekend, weekday-overnight and same-day timelines with Planned and Actual columns, a baker's-math recipe sheet, and starter and bake logs.

See what's inside

Illustration of three pages from the Schedule Pack: a weekend schedule, a recipe sheet and a starter log

Bakers Percent is a small, independent site. Read how these guides are researched.