Bakers Percent

Sourdough guide

Whole Wheat Sourdough: Five Recipes Compared by the Numbers

By Bakers Percent editorial9 min readLast updated Researched guide, AI-assisted (how we make these)

On this page
  1. The five formulas side by side
  2. Why whole wheat bakes denser
  3. Five schedules compared
  4. Baking and doneness
  5. Troubleshooting
  6. FAQ

How this guide was made: it is a researched guide compiled from the published recipes listed at the end of this page. We converted each one to baker's percentages on the same basis and lined up their schedules and bake settings; we don't claim to have baked these loaves. Every number is attributed so you can check it.

Whole wheat sourdough has a reputation for coming out heavy. The five recipes compared here all accept a slightly squatter, tighter loaf as the trade for flavor, and they fight the density in the same few ways: more water than a white loaf, enough time for the flour to soak it up, and a full rise. Where they differ is how much water, how much time, and whether they add any help, such as yeast, oil or a bran soaker.

Quick answers

  • Hydration: about 75–90% once the starter is counted [1][2][3][4][5]. The Pantry Mama explains that whole wheat takes up more water than white flour does [1].
  • Add water in steps. Flours differ, so two recipes give a starting amount and tell you to add more only if the dough feels dry [1][4].
  • Rest before you work it. Most give the flour 20 minutes to 2 hours with the water before folding or kneading [1][2][3][4].
  • Expect a denser loaf. Bran and germ get in the way of gluten, so 100% whole wheat rises less than white bread [1][3].
  • Bake: 450°F in a Dutch oven for most hearth loaves [1][3][4]; King Arthur's pan loaf bakes at 350°F [2].
  • Done: 195–210°F inside, depending on the recipe [2][3][5].

The five formulas side by side

These are baker's percentages, with each ingredient as a share of the total flour (100%). We counted the flour and water inside each starter, at equal weights of flour and water (100% hydration). The Perfect Loaf states that hydration for its starter [3], and Grant Bakes's feeding uses equal weights [4]; for King Arthur and The Pantry Mama it's our assumption. Our hydration calculator runs the same arithmetic, and baker's percentages, explained shows the method.

Recipe Total flour Hydration Salt Extras Flour in starter/levain (% of total) Whole wheat share Yield
The Pantry Mama [1] 550 g 78% (start at 380 g water, more if needed) 1.8% none 9% 91–100% (starter fed with white or whole wheat flour) 1 loaf, ~990 g dough
King Arthur Baking [2] 454 g 81% 1.3% oil 5.5% + 1 tsp instant yeast 25% 75–100% (depends on your starter's flour) 1 pan loaf (9 × 5 in), ~850 g dough
The Perfect Loaf [3] 921 g 90% 1.9% none (optional bran topping) 7% (stiff whole wheat levain) essentially 100% 2 × 900 g loaves
Grant Bakes [4] 500 g 85% (more in 25 g steps if dry) 2.0% none 10% nearly 100% (starter fed whole wheat) 1 loaf, ~935 g dough
Peter Reinhart, via Epicurious [5] about 650 g about 75–76% 2.1% honey 4.4%; oil 4.4% and instant yeast both optional about 30% (whole wheat starter) about 95–100% 2 loaves, ~1.2 kg dough

Figures are our arithmetic from each recipe's published gram weights (script: research/pillars6/formulas.py), except The Perfect Loaf, which publishes its own baker's percentages; we quote those [3]. Peter Reinhart's whole wheat starter begins with 56.5 g of a "mother starter" whose hydration isn't given on the page, so we show the result for 75–100% [5]. Counting only the water and flour in the bowl gives lower figures, for example 76% for The Pantry Mama and 75% for King Arthur.

What the comparison shows:

  • The water range is wide, and the sources expect you to adjust. The Pantry Mama calls its 380 g a starting point, because whole wheat flours absorb water very differently, and says freshly milled flour usually needs a little more [1]. Grant Bakes says some brands and freshly milled flours soak up more than others, and has you squeeze in extra water 25 g at a time if the dough feels too dry [4]. Peter Reinhart adds water a teaspoon at a time if the dough is very stiff [5].
  • The Perfect Loaf goes highest, at 90% [3]. Grant Bakes puts it simply: give a whole grain dough enough water, and let it rise long enough so it isn't dense or under-proofed [4].
  • Two recipes add a little help. King Arthur's pan loaf includes instant yeast and oil [2]. Peter Reinhart makes both optional: leave the yeast out for a "purist" version, or add it for a faster rise with less sour flavor; he includes the oil to soften and lubricate the bran [5].
  • How whole is "whole"? If your starter is fed white flour, its flour counts against the whole wheat share. That matters most for King Arthur's loaf, where the starter supplies a quarter of the flour [2]. The Pantry Mama says a white-fed starter is fine for its loaf [1].
  • Flour choice changes the flavor. The Perfect Loaf favors hard red wheat for a bold, punchy flavor and notes that white whole wheat tastes milder because it has fewer tannins [3]. It also points out that whole wheat's "high protein" label comes from the bran and germ, so it doesn't behave like strong white bread flour [3].

Why whole wheat bakes denser

All the sources agree on the cause. Whole wheat flour keeps the bran and germ, and those particles interfere with gluten, so the dough holds gas less well and the loaf comes out lower with a tighter crumb [1][3]. The Pantry Mama describes the bran as sharp enough to cut gluten strands [1] and calls some loss of oven spring normal for 100% whole wheat [1]. The Perfect Loaf frames it as a fair trade: a squatter loaf with a tighter crumb, in exchange for more flavor and nutrition [3].

Ways the sources suggest to get a lighter loaf:

  1. Let the flour hydrate first. The Pantry Mama rests the mixed dough (with starter and salt) before working it [1]; The Perfect Loaf uses an autolyse of flour and water [3]; Peter Reinhart rests the dough 5 minutes before kneading [5].
  2. Build strength. The Pantry Mama calls for four to six rounds of folding and warns the dough may never feel as smooth as a white one [1]. The Perfect Loaf says its very wet dough benefits from extra strengthening when mixing [3].
  3. Sift and scald (The Perfect Loaf). Sift out the coarse bran and germ, soak them in boiling water, then work them back in at the end of mixing or during bulk [3]. About 13% of its flour stayed on the screen; anything from 10% to 20% is fine [3]. The 200 g of scald water comes out of the recipe's water, not on top of it [3]. Made ahead, the soaker keeps chilled for as long as 3 days [3].
  4. Vital wheat gluten (optional). The Pantry Mama suggests it for extra strength and oven spring [1].
  5. Or accept it. The Pantry Mama's advice for a whole wheat first loaf is not to chase perfection: the goal is flavor and nutrition [1].

Five schedules compared

Before mixing Rest and strengthen First rise Shape and proof Bake day
King Arthur [2] ripe starter 20 min rest, then knead 60–90 min, until almost doubled (yeast helps) 8 in log in a 9 × 5 pan, 60–90 min, until 1 in above the rim same day, about 4 h total
Grant Bakes [4] feed starter 8–12 h 30 min rest, then 3 sets of folds 30 min apart 4–6 h, until roughly doubled preshape, rest 30 min, banneton in the fridge 8–24 h next day
The Perfect Loaf [3] stiff levain, 5 h at 74–76°F autolyse, mix 5 min; dough at 75°F 3 h with 4 sets of folds 30 min apart divide, rest 30 min, shape, fridge overnight next morning (or proof 2–4 h on the counter to bake the same day)
The Pantry Mama [1] feed starter the night before about 1 h rest (the step-by-step text says 1–2 h), then 4–6 sets of folds over at least 2 h until doubled or just under banneton in the fridge 5–36 h next day
Peter Reinhart [5] whole wheat starter 6–8 h, until 1½× (keeps up to 4 days chilled) mix, rest 5 min, mix 6 min, then 4 stretch-and-folds within 40 min in the fridge overnight, up to 4 days (purist version: 2–3 h out first) out 3 h before baking (4 h purist), shape, rise 2–3 h (up to 4 h purist) to 1½× day 2–5

Whole wheat ferments fast. The Perfect Loaf says the extra nutrients make fermentation vigorous, so watch the dough, especially in a warm kitchen [3]. The Pantry Mama warns the same and says to watch the dough rather than the clock [1]. Our bulk fermentation guide explains how temperature changes these times, and the water-temperature calculator helps you hit a target such as The Perfect Loaf's 75°F dough [3].

Baking and doneness

Recipe Oven Time Done when
The Pantry Mama [1] Dutch oven, 450°F lid on, then 410°F lid off 30 min + 10–15 min not stated; cool on a rack
Grant Bakes [4] Dutch oven, preheated 30 min at 450°F 20 min lid on + 15 min off cool at least 1 h
The Perfect Loaf [3] Dutch oven or combo cooker, 450°F 20 min lid on + 30–35 min off (the recipe card and step-by-step differ) about 204–208°F inside, crust deeply colored; cool 2–3 h
Peter Reinhart [5] preheat 500°F with a steam pan, then 425°F 35–45 min, rotating after 15 above 195°F inside, deep brown, hollow sound; cool at least 45 min
King Arthur [2] 350°F, loaf pan 40–45 min 205–210°F inside, golden brown
  • Don't slice early. The Perfect Loaf lists slicing before the loaf has fully cooled among the causes of a gummy interior [3].
  • Watch the bottom crust. Whole wheat browns fast. For a hard bottom crust, Maurizio Leo suggests a shorter Dutch oven preheat, an oven 25°F cooler, or a sheet pan on the rack below to shield the loaf [3].
  • A pan works too. The Pantry Mama says you can proof as usual and bake in a loaf pan, ideally with a second pan as a lid [1]. For a softer sliced loaf, see our sandwich bread comparison.

Troubleshooting

Problem What the sources suggest
Dense, flat loaf Some of this is normal for 100% whole wheat [1][3]. Give enough water and a full rise [4], develop the dough well [1], try sift-and-scald [3] or a little vital wheat gluten [1].
Gummy inside Under-proofed, over-proofed or under-baked; bake to about 204°F inside and cool fully before slicing [3].
Over-proofed? Signs are little oven rise and a dense crumb full of small holes [3]. Whole wheat moves fast in a warm kitchen [1][3].
Dough feels dry or stiff Add water in small steps: 25 g at a time [4], or a teaspoon at a time [5].
Dough feels heavy and tacky at first Let the flour finish absorbing the water before you reach for more flour [1].
Hard bottom crust Too much heat underneath: shorter preheat, 25°F lower, a sheet pan below, pull at 205–208°F [3].
Sticks to the banneton Dust with semolina or rice flour [1].
Slow rise Check your starter. Use it ripe [3]; our starter guide shows what ready looks like.

FAQ

What hydration is best for whole wheat sourdough? Five published recipes run from about 75% to 90% once the starter is counted [1][2][3][4][5]. Start at the recipe's amount and add water only if the dough feels dry, since flours differ [1][4].

Why is my whole wheat sourdough dense? Bran and germ interfere with gluten, so a 100% whole wheat loaf will be lower and tighter than a white one [1][3]. Enough water, a full rise and good strength-building help [1][4].

Can I use a white-flour starter? Yes, The Pantry Mama says so [1]. Your loaf will then be a little less than 100% whole wheat.

Can I use freshly milled flour? Yes. The Perfect Loaf [3] and Grant Bakes [4] both allow it, and The Pantry Mama expects it to need a little more water [1].

What internal temperature means it's done? About 204–208°F [3], 205–210°F for King Arthur's pan loaf [2], or above 195°F for Peter Reinhart's hearth loaf [5].

Can I make it in one day? King Arthur's yeasted pan loaf takes about 4 hours [2]. The Perfect Loaf's can be proofed on the counter for 2–4 hours instead of overnight [3].

Does whole wheat need a longer cold rest? Not necessarily. The cold proof runs from 5 to 36 hours [1], or 8 to 24 hours [4], or overnight [3]; Peter Reinhart allows up to 4 days for the dough [5].

Sources (checked 2026-10-18)

  1. The Pantry Mama (Kate Freebairn), "Whole Wheat Sourdough Bread Recipe" (updated 2026-09-22), including the author's replies in the comments: https://pantrymama.com/whole-wheat-sourdough-bread-recipe/
  2. King Arthur Baking (Charlotte Rutledge), "Whole Wheat Sourdough Bread" (updated 2025-02-24): https://www.kingarthurbaking.com/recipes/whole-wheat-sourdough-bread-recipe
  3. The Perfect Loaf (Maurizio Leo), "100% Whole Wheat Sourdough Bread" (updated 2025-04-13), including the author's replies in the comments: https://www.theperfectloaf.com/100-whole-wheat-sourdough/
  4. Grant Bakes (Grant Yoder), "100% Whole Wheat Sourdough Bread" (updated 2024-06-18): https://grantbakes.com/whole-wheat-sourdough-bread-recipe/
  5. Peter Reinhart, "100% Whole Wheat Sourdough Hearth Bread," from Peter Reinhart's Artisan Breads Every Day (Ten Speed Press, 2009), reprinted on Epicurious (2011-12-14): https://www.epicurious.com/recipes/food/views/100-whole-wheat-sourdough-hearth-bread-381442

Keep reading