Mastering Flour Hydration
Understanding hydration moves you away from following recipes and toward controlling your dough. It determines the consistency of your mixture, the behavior of your gluten, and the final texture of the loaf.
Weight is the only reliable metric
Volume measurements like cups are too inconsistent for hydration math. Use a digital scale to ensure your ratios remain constant across batches.
- digital kitchen scale
- mixing bowl
- calculator
What goes in.
- 1000 gbread flour
- 600 g to 850 gwater
The 100% Constant
In baking math, flour is always 100%. Every other ingredient is calculated as a percentage of that flour weight, which keeps your formulas scalable regardless of batch size.
The method.
Weigh your flour
Place your bowl on the scale and tare it. Add your flour until you hit your target weight, for instance 500 grams.
Apply your ratio
To achieve 70% hydration, multiply your flour weight (500g) by 0.70. You need 350 grams of water.
Assess the dough
Lower hydration (60%) creates a stiff, easy-to-handle dough for sandwich loaves. Higher hydration (80%+) results in a sticky, shaggy mass that requires coil folds to build structure.
When it doesn't go to plan.
Whole grains absorb more water than refined white flours; start with a lower hydration percentage if you are adding rye or whole wheat.
Humidity changes how flour behaves; keep a small amount of reserved flour or water to adjust the feel of the dough during the initial mix.
If the dough feels like a wet soup, it is likely over-hydrated for your flour's protein content; stop adding water and let it rest for 20 minutes to see if the flour absorbs the moisture.
The ones that keep coming up.
Does my sourdough starter count toward hydration?
Yes. If your starter is 100% hydration (equal parts flour and water), factor the weight of the water inside it into your total hydration calculation.
What happens if the hydration is too high?
The dough becomes difficult to shape and may spread flat in the oven rather than rising upward.
How real cooks make it.
No one’s shared their version yet. Be the first to put your kitchen on the map.
Cook this your way?
Share your version — your steps, your story. We’ll feature it right here.
Add your recipe