13%
Protein
100%
Absorption
120g
Per Cup
6mo
Shelf Life
Water absorption
100% · 45–400% across gluten-free floursThirstier than most gluten-free flours — expect to add liquid when you swap to it. See the full spectrum →
Binding Agents
Xanthan Gum
0.25 tsp / cup
Psyllium Husk
1 tsp / cup
Add 1/4 tsp xanthan gum or 1 tsp psyllium husk per cup. Commercial soba flour often contains wheat; do not substitute unless using 100% buckwheat soba.
When to Choose Buckwheat Flour
Specialty gluten-free flours typically work best as a partial component in a blend (15–30% of total flour) rather than as the primary flour. Their distinctive nutritional profiles, flavors, or functional properties are assets at moderate amounts but can overpower texture and taste at higher percentages.
High protein benefit: At 13% protein, this flour improves structure and browning when added to lower-protein base flours like rice flour. Adding 15–20% of a high-protein specialty flour to a standard blend noticeably improves crust color and crumb texture.
Common alternatives: For more neutral-flavored results, sorghum flour or oat flour are generally more versatile substitutes. For recipes where this flour’s flavor is a feature (earthy, nutty, or robust notes), it can be used at higher percentages.
Compare side-by-side in the Flour Database. For conversion amounts, use the Flour Converter. See methodology for data sources.
Best For
How it compares to All-Purpose Flour
Wheat AP flour: 10.3% protein, 85% absorption, 125g/cup
Storage
refrigerate. Approximately 6 months shelf life.
Certification
FDA Compliant: Meets FDA gluten-free labeling requirements (<20 ppm gluten).
Convert a recipe with Buckwheat
Where to Buy
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Quick Facts
- Category
- specialty
- Works with Yeast
- Yes
- Density
- 120g / cup
- Shelf Life
- 6 months
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Get the free Gluten-Free Flour Cheat Sheet
One-page printable guide: how much of each gluten-free flour replaces wheat, plus the 3 rules that fix most gluten-free baking problems.