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Buckwheat flour

Buckwheat flour suppliers and sourcing guide

Buckwheat flour is ground buckwheat (Fagopyrum esculentum), the seed of a broadleaf plant that is not related to wheat. Light flour is milled from hulled groats, while dark flour includes some hull and has stronger flavor and color; flour from roasted groats has a toasted note. Brands use it in soba noodles, pancakes and crepes, gluten-free baking, crackers and cereal blends.

See suppliersWhat to ask for on the COA
Also known as
Fagopyrum esculentum · Buckwheat groat flour · Soba flour
Facts checked
November 2026

Forms and grades of buckwheat flour

Suppliers sell different products under the same name. Specify the one you need.

  • Light buckwheat flour

    Milled from dehulled groats, with milder flavor and paler color.

  • Dark or whole buckwheat flour

    Includes some hull or bran, darker and more strongly flavored.

  • Toasted groat flour

    Flour from roasted groats, with a nuttier, toasted flavor.

  • Gluten-free and organic

    Flour from dedicated gluten-free mills and certified organic flour.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Moisture and ash
Moisture by oven drying and ash, which shows hull content.
Particle size
Sieve analysis for the specified fineness.
Gluten
Gluten by R5 ELISA, since buckwheat is often milled near wheat.
Mycotoxins
Ochratoxin A and other mycotoxins by LC-MS/MS.
Microbiology
Standard plate count, yeast and mold, E. coli and Salmonella.

Storage, lots and expiry

Storage and shelf life

Store sealed in a cool, dry place away from light, odors and pests, because buckwheat flour turns rancid faster than white wheat flour. Use opened bags promptly and keep stock cool in summer. Shelf life is set by the supplier, often 6 to 12 months.

Lots and expiry dates

Color, flavor and hull content vary by origin and milling, so record origin and the gluten result for each lot. Rotate stock first-expired, first-out.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

  • The EU Novel Food Catalogue records an Austrian authority's conclusion that flour from buckwheat seedlings with a high spermidine content is a novel food; the entry concerns that seedling flour.

    Source: ec.europa.eu (opens in a new tab)

  • 21 CFR 101.91 allows a "gluten-free" claim on a food that inherently does not contain gluten only when any unavoidable presence of gluten is below 20 ppm.

    Source: ecfr.gov (opens in a new tab)

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Buckwheat flour suppliers

Manufacturers and distributors whose own websites say they sell it.

We are checking buckwheat flour suppliers now

Every listing is checked against the supplier’s own website before it goes live, so this list fills in over the coming weeks. The specs and COA checklist above are ready today.

Sell buckwheat flour? Request a listing

Frequently asked questions

What forms of buckwheat flour can brands buy?

Common forms include light buckwheat flour, dark or whole buckwheat flour, toasted groat flour and gluten-free and organic. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for buckwheat flour include?

Expect moisture and ash, particle size, gluten, mycotoxins and microbiology, each with its method, specification and result for that lot.

How should buckwheat flour be stored?

Store sealed in a cool, dry place away from light, odors and pests, because buckwheat flour turns rancid faster than white wheat flour. Use opened bags promptly and keep stock cool in summer. Shelf life is set by the supplier, often 6 to 12 months.

What is the regulatory status of buckwheat flour?

The EU Novel Food Catalogue records an Austrian authority's conclusion that flour from buckwheat seedlings with a high spermidine content is a novel food; the entry concerns that seedling flour. 21 CFR 101.91 allows a "gluten-free" claim on a food that inherently does not contain gluten only when any unavoidable presence of gluten is below 20 ppm.

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