trade-export
Indian Flaxseed (Linseed): Cadmium, Rancidity and Specification
India shipped around 18,870 tonnes of flaxseed worth some US$21.3 million in 2024, ranking sixth globally against Canada’s US$154 million. The United States is the leading destination at roughly 6,090 tonnes, followed by Germany, the Netherlands, Canada and the UAE. But the number that matters more for buyers: India leads the world in organic flaxseed exports with around 62 percent share. What a health-food brand, miller, bakery formulator or distributor should settle before contracting.
October 7, 2026
7 min read
RNG Trade Intelligence
Market Research Desk · Rajkot
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Flaxseed

Where India genuinely leads

On conventional flaxseed India is a mid-sized origin — Canada, Belgium and Kazakhstan move far larger volumes, and it is worth saying so rather than implying otherwise.

On organic flaxseed, the position reverses: Indian shipments account for roughly 62 percent of global organic flax exports, well ahead of China and Türkiye. If you are sourcing certified organic, India is not a price alternative to the established origins — it is the main origin. Specify your scope certificate and lot-level transaction certificates as named contract documents, and confirm that the certifying body is recognised by your destination market, because recognition is where organic programmes most often come unstuck.

Cadmium: the parameter cleaning cannot fix

This is the section that decides whether a lot clears, and it is specific to this crop in a way most buyers underestimate.

Flax takes up cadmium from soil more readily than most crops, and several markets set maximum levels for cadmium in oilseeds. The consequence that catches people out is structural:

Cadmium is a growing and sourcing question, not a processing one. No amount of destoning, gravity separation or optical sorting removes it, because it is inside the seed rather than on it. A supplier who answers a cadmium question by describing their cleaning line has misunderstood the problem. Specify a cadmium limit with the testing laboratory and sampling plan named, require the result on the shipped lot rather than a historical certificate, and ask how the supplier manages sourcing against it — which growing areas, and whether they test incoming raw material before processing. That last question separates the suppliers who have thought about this from the ones who haven’t.

Rancidity, and why milled flax is a different purchase

Flaxseed is around forty percent oil, and that oil is very highly unsaturated — which is exactly why the product sells and exactly why it degrades.

Whole seed is relatively protected by its hull. Milling removes that protection and exposes the oil, so ground flax, flax meal and flax flour deteriorate far faster than whole seed.

If you are buying milled material, specify the milling date, peroxide value, free fatty acid, barrier packaging and a shorter agreed shelf life — and agree shelf life from milling, not from arrival. Buying ground flax on a whole-seed specification is the most expensive routine mistake in this product. For whole seed, specify peroxide value and the packing date as well, since long storage in a hot warehouse will still tell.

Three streams, three specifications

StreamNotes
Food gradeWhole or milled; tight cleaning, cadmium limit, microbiology, organic where contracted
Feed gradeSpecified against feed limits; cyanogenic glycoside position relevant at high inclusion
Industrial linseedFor oil used in paints, putty and linoleum — a different trade with a different specification and price

Declare the intended use at enquiry. It prevents both overpaying for an industrial requirement and under-specifying a food one. Note also that flaxseed naturally contains cyanogenic glycosides; some markets give guidance on this for high-inclusion food uses and for feed, and heat treatment reduces them. If your application involves high inclusion levels, confirm the position for your market with your own regulatory adviser rather than assuming.

Brown and golden are two products

Golden or yellow flax carries a retail premium because it is visually distinct in a finished product; brown is the volume grade. Colour mixing shows instantly in a clear pack, so specify a maximum percentage of off-colour seeds as its own contract line, agreed against a retained sealed reference sample with the crop year stated.

Cleaning, moisture and microbiology

Flaxseed is small and flat, which makes it behave differently from round seeds on a cleaning line. Specify total ash and acid insoluble ash as separate lines — acid insoluble ash is the soil indicator — plus separate limits for foreign matter, other seeds and weed seeds, and ask which cleaning steps are on the line in order.

Specify moisture at packing with the date. And because flaxseed is frequently eaten without further cooking — in smoothies, on cereal, in baking that may not reach a reliable kill temperature — specify the microbiological panel including Salmonella in 25 g and ask where the kill step sits in the supplier’s process.

Reference specification

ParameterRequirement
TypeBrown or golden; whole or milled — named
StreamFood, feed or industrial — declared
PurityTo contracted percentage, commonly 99.5% or higher for sortex-cleaned grades
Off-colour seedsMaximum percentage, own line, against retained sample
CadmiumLimit, with laboratory and sampling plan named, result on the shipped lot
Other heavy metalsTo destination limits
Peroxide value, free fatty acidSpecified; the rancidity control
Milling and packing dateStated; shelf life agreed from milling for ground material
Oil contentWhere relevant, with basis and method
MoistureAt packing, with date
Total ash / acid insoluble ashSeparate lines
Foreign matter, other seeds, weed seedsSeparate limits
SalmonellaAbsent in 25 g on the shipped lot; kill step described
TPC, yeast and mould, E. coliTo buyer limits
Pesticide residuesTo destination list
OrganicScope and lot-level transaction certificates; certifying body recognised by destination
Non-GMODeclared

Origin and season

Indian flaxseed comes principally from Madhya Pradesh, with Uttar Pradesh, Bihar, Rajasthan, Chhattisgarh and Maharashtra also producing. It is a rabi crop, sown after the monsoon and harvested in the first quarter, so new-crop material is available early in the year — which matters for a high-oil seed, since the fresher the crop at packing the more shelf life you are buying.

Packing, loading and documentation

ItemDetail
Bags25 kg PP or paper with liner; retail packs to buyer artwork from one full container load
20 ft containerAround 22 to 25 MT depending on packing
Container prepClean, dry, odour-free; barrier lining and desiccant on humid routes
Customs headingFlaxseed has its own heading, HS 1204.00 — but Indian export records show material moving under other headings too, so agree the eight-digit sub-heading with your broker and ask for consistent declaration across shipments
  • Importer Exporter Code from DGFT; APEDA registration; FSSAI licence; food safety management certification; halal and kosher where your market requires
  • Certificate of analysis: purity, off-colour percentage, moisture at packing, peroxide value, free fatty acid, total ash and acid insoluble ash separately, foreign matter, other and weed seeds, oil content where relevant
  • Cadmium report with laboratory and sampling plan named, on the shipped lot; other heavy metals
  • Microbiological report including Salmonella in 25 g, with the kill step described
  • Pesticide residue report against the destination list
  • Milling and packing dates; agreed shelf life for ground material
  • Organic scope and transaction certificates where organic is contracted, with the certifying body stated
  • Phytosanitary certificate; certificate of origin; commercial invoice, packing list and bill of lading

How to qualify an Indian flaxseed supplier

  1. State brown or golden, whole or milled, and the stream before price.
  2. Ask for a cadmium result on a recent lot with the laboratory named — and ask how they source against it.
  3. Ask whether incoming raw material is tested for cadmium before processing.
  4. For milled material, agree milling date, peroxide value, barrier packing and shelf life explicitly.
  5. Ask for acid insoluble ash as a separate figure and the cleaning line in order.
  6. Specify maximum off-colour seeds and request a sealed reference sample.
  7. For organic, verify the certifying body is recognised in your destination before contracting.

Frequently asked questions

Why is cadmium first?
Flax takes up cadmium from soil more readily than most crops, and several markets set limits. Cleaning cannot remove it because it is inside the seed — it is a sourcing question.
Is milled flax the same purchase?
No. Milling exposes the oil and deterioration accelerates sharply. Specify milling date, peroxide value, barrier packing and a shorter shelf life.
Brown or golden?
Separate products at separate prices. Specify maximum off-colour seeds against a retained sample.
Does India lead in anything here?
Yes — organic flaxseed, where Indian shipments are around 62 percent of global organic flax exports.
What about cyanogenic glycosides?
Flaxseed naturally contains them; some markets give guidance for high-inclusion food uses and feed, and heat treatment reduces them. Confirm your market’s position.
How much loads into a container?
Around 22 to 25 MT in a 20-foot container depending on packing.
  • Flax takes up cadmium from soil more readily than most crops, and several markets set limits. Cleaning cannot remove it because it is inside the seed — it is a sourcing question.
  • No. Milling exposes the oil and deterioration accelerates sharply. Specify milling date, peroxide value, barrier packing and a shorter shelf life.
  • Separate products at separate prices. Specify maximum off-colour seeds against a retained sample.
  • Yes — organic flaxseed, where Indian shipments are around 62 percent of global organic flax exports.
StreamNotes
Food gradeWhole or milled; tight cleaning, cadmium limit, microbiology, organic where contracted
Feed gradeSpecified against feed limits; cyanogenic glycoside position relevant at high inclusion
Industrial linseedFor oil used in paints, putty and linoleum — a different trade with a different specification and price
On organic flaxseed, the position reverses: Indian shipments account for roughly 62 percent of global organic flax exports, well ahead of China and Türkiye. If you are sourcing certified organic, India is not a price alternative to the established origins — it is the main origin. Specify your scope certificate and lot-level transaction certificates as named contract documents, and confirm that the certifying body is recognised by your destination market, because recognition is where organic programmes most often come unstuck.
Request a specification-matched offer
Samples with lot certificate of analysis available to qualified buyers.
https://rngagroexports.com/request-quote/
FlaxseedLinseedCadmiumRancidityGolden FlaxseedMilled FlaxFood GradeMadhya Pradesh
Brown flaxseed, food grade 99.5%on requestup
Golden flaxseed, food gradeon requestup
Milled flaxseedon requestup
Industrial linseedon requestup
Oct – NovRabi sowing in Madhya Pradesh and Uttar Pradesh
Feb – MarHarvest; new-crop arrivals
Apr – JunFreshest crop for packing
Jul – SepTrade from stored stock
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