Autolyse Calculator

Autolyse is the flour + water rest before adding salt and levain. The table below shows the water weights for common flour amounts at 70-85% hydration targets.

Autolyse water by flour weight

Flour (g)70% water75% water80% water85% water
250175188200213
500350375400425
750525563600638
1000700750800850

Use 90% of total recipe water for autolyse; reserve 10% for incorporating salt and levain afterward. Mix flour + autolyse water, rest, then add remaining water + salt + levain.

How long to autolyse?

  • Bread flour: 30-45 min. Extends gluten, reduces mix time.
  • Whole wheat: 60-90 min. Bran needs time to hydrate.
  • Rye (any): Skip autolyse. Mix once and rest; autolyse damages rye structure.
  • Spelt / einkorn: 15-20 min max. Ancient-wheat gluten degrades quickly.
  • Type 00: 15-20 min. Fine grind hydrates fast.

The gear that makes the math work

A short, honest baking kit. The scale matters most — every weight on this page is in grams. The Dutch oven is what turns a good crumb into a great crust.

Affiliate links. As an Amazon Associate, SourdoughHydration earns from qualifying purchases at no extra cost to you.

  • Digital kitchen scale (0.1 g)Digital kitchen scale (0.1 g)

    Baker's percentage is by weight, not volume — a 0.1 g scale is what makes the math on this page accurate.

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  • Dutch oven / combo cookerDutch oven / combo cooker

    Traps steam for the first bake phase — the single biggest factor in oven spring and a blistered, glossy crust.

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  • Banneton proofing basketBanneton proofing basket

    Wicks moisture and holds shape during the final proof, so high-hydration dough doesn't spread flat.

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  • Bread lameBread lame

    A sharp lame scores clean ears — the cut that decides whether the loaf opens up or bursts at the side.

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  • Bench scraperBench scraper

    Steel scraper handles wet, sticky high-hydration dough without tearing the gluten you just built.

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  • High-protein bread flourHigh-protein bread flour

    The math assumes ~12–14% protein. Real bread flour absorbs the hydration you calculate — all-purpose won't.

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  • Danish dough whiskDanish dough whisk

    Mixes shaggy, high-hydration dough in seconds without the gluey mess of a spoon or your hands.

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Or learn the craft by ear

The numbers here are the what; a good baking book is the why. An Audible trial gets you any title free — Michael Pollan’s Cooked(the “Air” chapter is the best story ever told about why bread rises) is a perfect first listen.

Start a free Audible trial →

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Common questions

What is autolyse?

Autolyse is a 20-90 minute resting stage where flour and water are mixed and allowed to sit before salt and levain are added. It develops extensibility and reduces required mixing.

How long should autolyse be?

Bread flour: 30-45 minutes. Whole wheat: 60-90 minutes. Spelt/einkorn: 15-20 minutes (gluten degrades quickly in ancient wheats).

Source: Raymond Calvel, Le Goût du Pain (who coined the autolyse technique); Hamelman, Bread 3rd ed.