Origin: Unjha and the western belt
Cumin is grown across north Gujarat and western Rajasthan — Mehsana, Banaskantha and Patan in Gujarat; Barmer, Jalore, Jodhpur and Nagaur in Rajasthan. The physical centre of the trade is the Unjha market in north Gujarat, which is the world’s largest cumin market and where the reference price for the global trade is effectively set.
India dominates world cumin supply and trade. Spices Board data for FY 2024-25 records cumin exports at USD 732.35 million, up 4.6 percent year on year, with China, Bangladesh and the UAE as the top three markets. The United States and Vietnam follow closely, and together these five take the majority of Indian cumin.
Cumin is a rabi crop. Sowing runs from October into November, harvest falls in February and March, and arrivals concentrate at Unjha from February through April. Volatile oil is at its highest in fresh crop, which makes the February-to-May window the right time to contract an annual programme and the wrong time of year to be buying leftover old-crop material at a discount that looks attractive on paper.
Grades and forms
Purity grades
The trade names describe cleaning standard, not botanical difference. Singapore quality is typically 99 percent purity, Europe quality 99.5 percent, and Sortex cleaned 99.9 percent after optical colour sorting. The higher grades cost more because yield falls with each cleaning and sorting pass.
Whole seed
The default and the safer purchase. Adulterants and foreign seed are visible in whole cumin, and volatile oil holds better in the intact seed than in powder.
Ground cumin
Supplied to a specified mesh. Convenient, and materially riskier — see the adulteration section below. Ground cumin also loses volatile oil far faster than whole seed, so packing date and packaging barrier matter more than they do for whole.
Roasted and organic
Roasted cumin to a specified roast profile for blend and retail use. Organic under NOP and EU organic certification, which requires segregated handling and a longer sourcing window; insist on lot-level transaction certificates rather than a scope certificate alone.
Reference specifications
| Parameter | Singapore 99% | Europe 99.5% | Sortex 99.9% |
|---|---|---|---|
| Purity | 99.0% min | 99.5% min | 99.9% min |
| Volatile oil | 2.0 ml/100 g min | 2.5 ml/100 g min | 2.5–3.5 ml/100 g |
| Moisture | 10.0% max | 9.0% max | 8.0% max |
| Total ash | 9.5% max | 8.5% max | 8.0% max |
| Acid insoluble ash | 1.75% max | 1.5% max | 1.0% max |
| Extraneous vegetable matter | 1.0% max | 0.5% max | 0.1% max |
| Foreign matter | 0.5% max | 0.2% max | Nil |
| Damaged / discoloured | 2.0% max | 1.0% max | 0.5% max |
| Salmonella | Absent in 25 g | ||
| Sterilisation | Steam, or as specified — see below | ||
Volatile oil: the parameter most enquiries leave out
Almost every cumin enquiry specifies a purity percentage. Very few specify volatile oil, and that is the parameter that determines whether the material actually performs.
Volatile oil is what carries cumin’s aroma and flavour. It declines with age, with heat, with poor storage and with grinding. A lot can be perfectly clean at 99.5 percent purity and commercially disappointing at the same time, because purity measures what has been removed and volatile oil measures what remains. Old-crop material blended into new is the oldest trick in this trade, and a purity clause alone will not catch it.
Specify volatile oil as a minimum in ml per 100 g, alongside purity and crop year. Then ask that the certificate of analysis state the test date as well as the result, because volatile oil measured at harvest and volatile oil measured at shipment are not the same number.
Adulteration: the risk that makes cumin different
This section is the reason to read past the specification table. Cumin carries an adulteration exposure that most spices do not, and a buyer who understands it will source differently.
Undeclared nut protein in ground cumin
Ground cumin has a documented international history of adulteration with undeclared nut protein, which triggered product recalls across several markets and forced a permanent change in how serious buyers handle this line. The reason it happened in cumin specifically is economic and physical: cumin has periodically been an expensive spice, and in powder form a diluent is invisible. Any buyer purchasing ground cumin should require allergen testing on the specific lot, not a generic supplier statement.
Foreign and look-alike seed
Whole cumin can be bulked with cheaper seed of similar appearance, and in the worst cases with coloured or coated material designed to resemble cumin. Optical sorting removes most of this, which is part of what you are buying with a Sortex grade, but the underlying protection is a supplier who cleans and sorts rather than one who buys already-bagged material and reships it.
Old crop blended into new
Not illegal, but it is a quality dilution that a purity clause will not detect. Specify crop year in the contract and require volatile oil at shipment.
The structural conclusion: buy whole seed and grind in your own facility wherever your process allows. It is the single largest risk reduction available in this commodity. Where you must buy ground, require lot-specific allergen testing, the grinding date, and traceability back to the whole-seed lot.
Sterilisation and microbiology
Cumin is a low-moisture agricultural product handled through open-air drying and threshing, so microbiological control is a live issue. Salmonella is the organism that matters most in spices and should be specified as absent in 25 g.
On sterilisation method, the same rule applies here as to any spice destined for the European Union. Ethylene oxide is not approved for use on food in the EU, and the residue limit, expressed as the sum of ethylene oxide and 2-chloroethanol, is 0.05 mg/kg under Regulation (EC) No 396/2005. Detections in spices have produced RASFF notifications and retail-level recalls. Steam sterilisation is the answer for EU-bound cargo and for most other regulated markets.
Steam treatment can reduce volatile oil if poorly controlled, which is why the volatile oil figure on the certificate should be the post-sterilisation result rather than the untreated one. Ask which it is.
Documentation
- Spices Board of India registration — a spice-specific credential distinct from APEDA registration, and the first thing to verify for any Indian spice supplier
- Certificate of analysis from an accredited laboratory covering purity, volatile oil, moisture, total ash and acid insoluble ash, with the test date stated
- Microbiological report: Salmonella in 25 g, total plate count, yeast and mould, E. coli
- Pesticide residue report against the destination’s limits, including ethylene oxide and 2-chloroethanol for EU-bound cargo
- Allergen test report on the specific lot where ground cumin is contracted
- Aflatoxin report where the destination or buyer requires it
- Sterilisation record naming the method, with validation data for steam treatment
- Phytosanitary certificate and certificate of origin
- Organic transaction certificate at lot level where organic is contracted
- Commercial invoice, packing list and bill of lading, declaring HS 0909.31 for whole seed or 0909.32 for ground
Packing and container loading
| Item | Detail |
|---|---|
| Bag sizes | 25 kg and 50 kg; PP woven, jute, or multi-wall paper with liner |
| Ground cumin | Barrier packaging with liner; volatile oil loss accelerates in permeable packing |
| Private label | Printed bags or retail packs to buyer artwork, from one full container load |
| 20 ft container | Approximately 12 to 14 MT — volume constrained before weight |
| 40 ft HC container | Approximately 26 to 28 MT |
| Container prep | Clean, dry, odour-free; cumin picks up taint readily, so previous cargo matters |
| Marking | Lot number, grade, crop year, volatile oil, production and packing date |
Cumin is aromatic and absorbs odour from its surroundings. Require a clean, dry, odour-free container and ask what the previous cargo was. A container that last carried a strong-smelling commodity will transfer that character into the seed, and it is not recoverable.
Ports and transit
Mundra and Kandla sit closest to Unjha and handle the majority of cumin volume, with Nhava Sheva as an alternate. Indicative transit times from Mundra, subject to service and transhipment:
| Destination port | Indicative transit |
|---|---|
| Shanghai / Ningbo, China | 18 to 26 days |
| Chattogram, Bangladesh | 10 to 16 days |
| Jebel Ali, UAE | 4 to 6 days |
| New York / Newark, USA | 28 to 36 days |
| Ho Chi Minh City, Vietnam | 16 to 22 days |
| Rotterdam, Netherlands | 20 to 26 days |
| Hamburg, Germany | 22 to 30 days |
| Manzanillo, Mexico | 30 to 40 days |
How to qualify an Indian cumin supplier
- Verify Spices Board of India registration first, then the Importer Exporter Code issued by DGFT and APEDA registration where relevant.
- Establish whether the counterparty cleans, sorts and sterilises in-house or buys bagged material and reships it. For cumin this distinction is the main defence against adulteration.
- Ask for volatile oil and purity on a recent shipment’s certificate of analysis, with the test date shown.
- Request a pre-shipment sample against your own grade sheet and test volatile oil, purity and microbiology independently.
- If buying ground, ask what allergen testing is done, on what frequency, and whether the grinding line is shared with nut-containing products.
- Confirm the sterilisation method in writing and whether the certificate figure is pre- or post-treatment.
- Start with a trial container and confirm aroma and volatile oil on arrival before committing to a term contract.
Frequently asked questions
- What is the difference between Singapore, Europe and Sortex grades?
- Cleaning standard and purity, not botanical difference. Singapore is typically 99 percent, Europe 99.5 percent, Sortex 99.9 percent after optical sorting. Yield falls with each pass, which is why the higher grades cost more.
- Why specify volatile oil?
- It carries the aroma and flavour, and it declines with age and poor storage. Purity tells you how clean the seed is, not whether it still smells like cumin. Specify a minimum in ml per 100 g with the crop year.
- Is ground cumin riskier than whole?
- Yes. Adulterants are visible in whole seed and invisible in powder, and ground cumin has a documented history of undeclared nut protein adulteration that caused international recalls. Buy whole and grind in-house where you can.
- How much loads into a container?
- Roughly 12 to 14 MT in a 20-foot and 26 to 28 MT in a 40-foot high cube. Cumin fills by volume before it reaches weight limits.
- Steam or ethylene oxide sterilisation?
- Steam for anything EU-bound. Ethylene oxide is not approved for food use in the EU and residues are limited to 0.05 mg/kg as the sum of ethylene oxide and 2-chloroethanol under Regulation (EC) No 396/2005.
- What is the HS code?
- 0909.31 for whole cumin seed, 0909.32 for crushed or ground. Confirm the eight-digit national code with your customs broker.
- What is the minimum order quantity?
- Trial orders from 1 MT for new buyers, then full container loads from Mundra, Kandla or Nhava Sheva.
- Cleaning standard and purity, not botanical difference. Singapore is typically 99 percent, Europe 99.5 percent, Sortex 99.9 percent after optical sorting. Yield falls with each pass, which is why the higher grades cost more.
- It carries the aroma and flavour, and it declines with age and poor storage. Purity tells you how clean the seed is, not whether it still smells like cumin. Specify a minimum in ml per 100 g with the crop year.
- Yes. Adulterants are visible in whole seed and invisible in powder, and ground cumin has a documented history of undeclared nut protein adulteration that caused international recalls. Buy whole and grind in-house where you can.
- Roughly 12 to 14 MT in a 20-foot and 26 to 28 MT in a 40-foot high cube. Cumin fills by volume before it reaches weight limits.
| Parameter | Singapore 99% | Europe 99.5% | Sortex 99.9% |
|---|---|---|---|
| Purity | 99.0% min | 99.5% min | 99.9% min |
| Volatile oil | 2.0 ml/100 g min | 2.5 ml/100 g min | 2.5–3.5 ml/100 g |
| Moisture | 10.0% max | 9.0% max | 8.0% max |
| Total ash | 9.5% max | 8.5% max | 8.0% max |
| Acid insoluble ash | 1.75% max | 1.5% max | 1.0% max |
| Extraneous vegetable matter | 1.0% max | 0.5% max | 0.1% max |
| Foreign matter | 0.5% max | 0.2% max | Nil |
| Damaged / discoloured | 2.0% max | 1.0% max | 0.5% max |
| Salmonella | Absent in 25 g | ||
| Sterilisation | Steam, or as specified — see below | ||
Specify volatile oil as a minimum in ml per 100 g, alongside purity and crop year. Then ask that the certificate of analysis state the test date as well as the result, because volatile oil measured at harvest and volatile oil measured at shipment are not the same number.
| Cumin Singapore 99% | on request | up |
| Cumin Europe 99.5% | on request | up |
| Cumin Sortex 99.9% | on request | up |
| Ground cumin | on request | up |
| 31 Oct | Rabi sowing completed in Gujarat and Rajasthan |
| 28 Feb | Harvest begins in the western belt |
| 30 Apr | Arrivals peak at the Unjha market |
| 31 May | Annual contracting window closes |
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