All-Purpose Flour
Versatile mid-protein flour. Works for sourdough but produces a softer crumb than bread flour.
mildneutral
12.0g
Protein / 100g
60–72%
Hydration Range
medium
Gluten Strength
100%
Max in Blend
Nutrition Facts (per 100g)
Calories362 kcal
Protein12.0g
Carbohydrates74.6g
Dietary Fiber3.0g
Total Fat1.70g
Iron1.18mg
Source: USDA FoodData Central (FDC #790018) — Foundation data
Sourdough Baking Guide
Hydration
Reduce hydration 5–8% compared to bread flour — lower protein absorbs less water.
Recommended range: 60–72%
Gluten
Medium — good for sourdough with careful handling
Fermentation Speed
Ferments at standard speed, similar to bread flour.
Tips
- 1.Perfectly usable for sourdough — just reduce hydration slightly.
- 2.Produces a softer, more tender crumb than bread flour.
- 3.King Arthur AP is 11.7% protein — higher than most brands (typically 10–10.5%).
Related Flours
Try a Recipe
Sources
- Nutrition data: https://fdc.nal.usda.gov/food-details/790018/nutrients
- Protein percentage: https://www.kingarthurbaking.com/blog/2023/09/25/protein-percentage
- Hydration adjustment: https://flourwise.com/blog/sourdough-hydration-chart/