Wholesale Wheat & Flour Suppliers

Wheat classes and their milling applications

Wholesale wheat is traded by class, with each class defined by kernel hardness, colour, and growing season — and each suited to specific milling and end-product applications. Hard Red Winter (HRW) wheat — grown in the US Great Plains, Kansas, Texas, Oklahoma — is the most widely traded US wheat class, with protein content typically 10.5–13.0%. Used for bread flour and all-purpose flour. Hard Red Spring (HRS) wheat — grown in Minnesota, North Dakota, Montana, and Canadian prairies — has the highest protein content (13.0–14.5%), making it the premier wheat for high-protein bread flour and blending. Hard White (HW) wheat is similar to HRW but with milder flavour; preferred for Asian noodles and whole-wheat products. Soft White (SW) wheat — low protein (8.5–10.5%), used for pastry, biscuit, and noodle flour. Durum wheat — the hardest wheat class, grown in Canada (Saskatchewan), the USA (North Dakota), Italy, and Turkey; used exclusively for semolina flour and pasta production. Russian and Ukrainian wheat is predominantly soft to medium-hard class, branded as 4th-class wheat (protein ≥11.5%) internationally, with some 3rd-class (protein ≥12.5%) available. Australian Standard White (ASW) and Australian Premium White (APW) are the main Australian export grades — soft to medium hard, widely used in Asian noodle and flat bread applications. French milling wheat (Euronext MATIF contract grade) targets protein ≥11.0% with Hagberg Falling Number ≥220 seconds.

Protein content and Hagberg Falling Number for milling quality

Two parameters dominate milling wheat quality assessment in wholesale trade: protein content and Hagberg Falling Number (HFN, also called Falling Number). Protein content (% of dry matter, typically measured by NIR) determines gluten strength and bread-making quality. Minimum protein thresholds for wholesale contracts are typically: bread flour wheat ≥12.0%, all-purpose wheat ≥10.5%, biscuit/pastry wheat ≥8.5%, durum semolina wheat ≥12.5%. Hagberg Falling Number (ISO 3093) measures alpha-amylase enzyme activity in wheat — a low HFN (below 220 seconds) indicates pre-harvest sprouting damage or weather damage and produces sticky, poor-quality bread with gummy crumb. Most milling wheat contracts specify HFN ≥220 seconds (or ≥250 seconds for premium grades). Sellers should provide NIR protein analysis and Hagberg testing from an accredited laboratory on each parcel. Wet gluten content, gluten index, and Zeleny sedimentation value are additional milling quality tests requested by flour mill buyers for specific applications.

Mycotoxin limits for wheat: DON, zearalenone, and ochratoxin A

Deoxynivalenol (DON, vomitoxin) is the most commercially critical mycotoxin for milling wheat — produced by Fusarium head blight (scab disease), which is prevalent in wet, humid conditions at flowering. EU maximum limits under Regulation (EC) 1881/2006: DON in unprocessed wheat — 1,250 µg/kg (1.25 mg/kg); DON in wheat flour — 750 µg/kg; DON in bread, biscuits, pastry — 500 µg/kg. Zearalenone in unprocessed wheat: 100 µg/kg. Ochratoxin A in unprocessed cereals: 5 µg/kg. T-2 and HT-2 toxins are regulated by EU guidance level. US milling wheat contracts commonly specify DON ≤2 ppm (2,000 µg/kg) based on FDA advisory levels. DON incidence is particularly high in US Soft Red Winter wheat from humid growing regions and in European wheat in wet harvest years. Buyers should require full mycotoxin panel analysis (DON, ZEN, OTA, T-2/HT-2, and fumonisins) from ISO 17025-accredited laboratories as a condition of payment.

Phytosanitary requirements: Karnal bunt and wheat blast

Two quarantine diseases dominate phytosanitary compliance for international wheat trade. Karnal bunt (Tilletia indica) is a fungal smut disease found in specific regions of India, Pakistan, Mexico, and the southwestern USA. The EU (Regulation 2016/2031), Australia (DAFF), Canada (CFIA), and many other jurisdictions restrict or prohibit the import of wheat from Karnal bunt-affected areas without specific treatment or origin guarantees. US wheat exports from Arizona, California, and Texas to many markets require specific USDA APHIS phytosanitary certificates confirming Karnal bunt freedom. Wheat blast (Magnaporthe triticum pathotype, Triticum Wheat Blast) is an emerging quarantine pest — detected in Bangladesh (2016), Zambia (2018), and Brazil — requiring phytosanitary certification for wheat from affected areas. All wheat importing countries require a phytosanitary certificate from the exporting country's NPPO confirming freedom from regulated pests. Buyers should confirm the origin-country NPPO's phytosanitary certificate template covers the specific pests required by the destination country's plant health authority.

GAFTA contracts and origin export profiles

Most international wheat contracts are concluded on GAFTA standard terms. GAFTA Contract No. 100 (CIF, containerised) and GAFTA Contract No. 49 (FOB, bulk) are the most widely used. GAFTA arbitration (London) is the default dispute resolution mechanism. Russia is the world's largest wheat exporter since 2016 — typically 40–50 million MT per year — predominantly 4th-class wheat (protein ≥11.5%) from Krasnodar Krai and Rostov Oblast, exported via Novorossiysk and Tuapse Black Sea ports. An export quota and variable export tariff mechanism regulates Russian wheat exports — buyers must monitor the Russian quota season (typically February–June) and residual quota levels. Australia exports approximately 25–30 MT per year — ASW and APW grades are dominant, exported from Fremantle (WA), Port Kembla (NSW), and Melbourne (VIC). Australia's wheat is essentially GM-free and has strong phytosanitary credentials. Canada (primarily CWB-marketed Hard Red Spring from the prairie provinces) exports 22–26 MT per year — premium protein for bread flour buyers. France exports 15–20 MT per year via Rouen (world's largest soft wheat export terminal), predominantly soft milling wheat (Euronext Grade).

Frequently asked questions