Hydration × flour
75% Hydration Light Rye Flour
Open crumb with distinct holes of varying sizes. Moist, chewy, glossy cell walls. The classic Tartine country-loaf target.
Within Light Rye Flour's workable range (68–80%)
Is 75% hydration right for Light Rye Flour?
Light Rye Flour's workable hydration range is 68–80%. Its absorption multiplier is 1.03× bread flour. At 75%, you are in the sweet spot — the dough will handle predictably and produce the crumb described above.
Absorption math for Light Rye Flour at 75%
A recipe written for bread flour at 75% hydration, when substituted with 100% Light Rye Flour, becomes 77% effective hydration (because Light Rye Flour absorbs 3% more water). Handles closer to wheat than medium or dark rye — light stretch-and-folds are fine at low percentages. Keep the bulk ferment a touch shorter than an all-wheat dough; rye enzymes speed fermentation. Above ~40% rye, switch to no-knead rye handling (mix, rest, wet hands, tight banneton).
Technique at 75% hydration
The sweet spot for most hearth sourdough. Requires confident stretch-and-folds (3-4 sets). Wet hands essential for shaping. Cold retard improves handling and ear development during scoring.
Worked water math for a 500 g batch
| Light Rye Flour | 500 g (100%) |
| Water | 375 g (75%) |
| Salt | 10 g (2%) |
Add your levain on top of these weights; the calculator below subtracts the flour and water it already contributes so the bench numbers land at 75% exactly.
What Light Rye Flour gives you at 75%
At 75% hydration you can expect an open, custardy crumb with irregular holes and good chew. A slack, sticky dough: work with wet hands, use coil folds rather than aggressive stretches, give a full bench rest after pre-shaping, and shape decisively — hesitation lets it spread.
Light Rye Flour at 75% — FAQ
How much water do I use for Light Rye Flour at 75% hydration?
Multiply the flour weight by 0.75. For a 500 g batch of Light Rye Flour that's 375 g water, plus about 10 g salt (2%). Light Rye Flour absorbs 1.03× as much water as white bread flour, so it will feel a touch stiffer than the 75% number suggests.
Is 75% hydration right for Light Rye Flour?
Yes — Light Rye Flour's workable range is 68–80%, and 75% sits inside it, so the dough handles predictably and gives an open, custardy crumb with irregular holes and good chew.
What crumb will Light Rye Flour at 75% give me?
Expect an open, custardy crumb with irregular holes and good chew. Open crumb with distinct holes of varying sizes. Moist, chewy, glossy cell walls. The classic Tartine country-loaf target.
Is Light Rye Flour at 75% beginner-friendly?
This hydration is rated intermediate. A slack, sticky dough: work with wet hands, use coil folds rather than aggressive stretches, give a full bench rest after pre-shaping, and shape decisively — hesitation lets it spread.
Calculator pre-set to 75%
Weights below assume 100% Light Rye Flour. For blends, use the main calculator on a recipe page.
- Flour to add
- 450 g
- Water to add
- 325 g
- Salt
- 10 g
- Levain @ 100%
- 100 g
- Total dough
- 885 g
- Effective hydration
- 75%
How the math works
Total water = flour × hydration %. Your levain contributes 50 g flour + 50 g water — both count toward the totals. You add only the remainder as fresh flour and water.
Salt % is computed on total flour weight, not final-dough flour.
To bake this recipe you need
Amazon links. We earn from qualifying purchases.
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)View on Amazon →- Dutch oven / combo cookerView on Amazon →
- Banneton proofing basketView on Amazon →
- Bread lameView on Amazon →
- Bench scraperView on Amazon →
- High-protein bread flourView on Amazon →
- Danish dough whiskView on Amazon →
As an Amazon Associate, SourdoughHydration earns from qualifying purchases at no extra cost to you. More on how this is funded.
Light Rye Flour at every hydration level
Light Rye Flour usually works between 68% and 80% hydration — drier gives a stiffer dough, wetter a slacker one. Tap a level for the technique, the absorption math and a calculator set to it.
| Hydration | Water per 500 g | For Light Rye Flour |
|---|---|---|
| 55% | 275 g | Drier than usual |
| 60% | 300 g | Drier than usual |
| 65% | 325 g | Drier than usual |
| 70% | 350 g | In its range |
| 72% | 360 g | In its range |
| 75%this page | 375 g | In its range |
| 78% | 390 g | In its range |
| 80% | 400 g | In its range |
| 82% | 410 g | Wetter than usual |
| 85% | 425 g | Wetter than usual |
| 90% | 450 g | Wetter than usual |
| 95% | 475 g | Wetter than usual |