Sourcing Cashew Kernels from India: Grades, Pricing and Quality Control

Cashew is one of the easiest Indian products to buy badly. The grading system is public, the price list looks unambiguous, and a photograph of ivory kernels tells you almost nothing about what will arrive. Most disputes in this trade are not about fraud — they are about a buyer and a seller using the same grade name to mean two different things.

This guide covers what the grades actually specify, what they leave open, and how to close the gap in a contract.

The grading system, and what it does not tell you

Indian cashew kernels are graded on a system derived from the Cashew Export Promotion Council of India specifications, and it splits into three broad families.

White wholes. Graded by size, expressed as approximate kernel count per pound. The letter W stands for white whole.

Scorched. Kernels that took colour during processing. SW is scorched wholes, graded by the same size counts. SSW is a second-quality scorched grade with more pronounced colour.

Brokens and pieces. B for butts, S for splits, LWP for large white pieces, SWP for small white pieces, and further down into baby bits and granules. These are sold at substantial discounts and are structurally different products rather than defective ones.

Here is the part that catches buyers. The grade specifies size and, loosely, colour. It does not specify moisture, broken percentage within a whole-kernel grade, foreign matter, insect damage, aflatoxin, or shelf life. Two suppliers can both ship you honest W320 and deliver materially different value.

The savings most buyers miss

If your product does not display the kernel whole, you are almost certainly overpaying by buying wholes.

A cashew paste, a praline, a chocolate inclusion, a cashew butter, a ground base for a sauce — none of these care whether the kernel arrived intact. Splits, large white pieces and even scorched grades eat identically. The discount between W320 and LWP is significant, and between W320 and scorched splits larger still.

The buyers who consistently do well in cashew are the ones who match grade to end use rather than buying the grade they think signals quality. Buy W240 for the retail pack, and buy pieces for everything that gets ground.

Where it is grown, and where it is processed

India occupies an unusual position: a major producer, and by some distance the world's largest processor. That second role means a large share of raw cashew nut arriving at Indian factories was grown elsewhere — principally West Africa, and some from South East Asia.

The processing clusters each have their own character:

• Kollam, Kerala. The oldest and most established processing base, with the deepest skilled-labour pool for hand shelling and peeling. Strong on grading consistency.
• Mangaluru, Karnataka. Large modern units, more mechanised, strong on volume and export documentation.
• Panruti and Cuddalore, Tamil Nadu. Substantial domestic growing alongside processing.
• Vetapalem, Andhra Pradesh. Known for local raw nut and a strong domestic trade.
• Goa. Smaller, with a well-known local variety and a significant feni and by-product trade.

Writing a cashew specification that holds

A usable purchase specification covers eight things. Grade alone covers one and a half of them.

• Grade — W240, W320, SW320, LWP and so on, named exactly
• Colour — ivory white, pale ivory, light ash; and the tolerance for off-colour kernels as a percentage
• Broken and defect tolerance — within a whole-kernel grade, the maximum percentage of brokens, splits, insect damage and spotted kernels
• Moisture — a maximum, typically around 5 percent; higher moisture is heavier, softer and shorter-lived
• Foreign matter — a maximum, with testa (the reddish skin) called out separately, since incomplete peeling is the most common defect
• Aflatoxin — B1 and total, against your destination's limit
• Microbiology — total plate count, yeast and mould, Salmonella absent in 25 g, E. coli
• Packing — 10 kg vacuum-nitrogen tin, two per carton, with the carton marking specified

Add crop year and processing date. Cashew has a real shelf life and a tin packed nine months ago is not the same product as one packed last month, even under nitrogen.

The broken-percentage clause that pays for itself

The single most valuable line in a cashew contract is a maximum broken percentage within the whole-kernel grade, with a defined remedy.

Kernels break in handling and in transit. Some breakage is unavoidable and every honest processor allows for it. Without a stated tolerance, a lot arriving at fifteen percent brokens is a matter of opinion. With a stated tolerance of, say, five percent and a pro-rata price adjustment beyond it, it is arithmetic.

Specify how the percentage is measured too — by weight, on a defined sample size, by an agreed method. "Some brokens" is not a contract term.

Packing, shelf life and why it is not negotiable

Cashew kernel is roughly forty-five percent oil, largely unsaturated. That makes it nutritionally attractive and chemically fragile. Two things degrade it: oxygen, which drives rancidity, and moisture, which softens texture and enables mould.

The export standard exists for good reason:

• 10 kg tin, food-grade lacquered, flushed with nitrogen to displace oxygen, then vacuum sealed
• Two tins per carton, 20 kg net, which is what most price quotations assume
• Shelf life typically quoted at twelve months from packing under those conditions

Flexi-pouch and bulk-bag alternatives exist and are cheaper. They are appropriate for short transits and fast turnover, and a poor idea for a 30-day ocean leg into a warehouse.

Three practical checks on arrival: the tin should hold vacuum, so a lid that flexes freely means a seal failure; the kernels should snap rather than bend; and there should be no oily smell on opening, which is the first sign of rancidity.

Aflatoxin and the microbiological set

Cashew sits alongside chilli, nutmeg and groundnut as a commodity where mycotoxin is the risk that actually stops shipments.

Aflatoxin is produced by moulds that grow on the raw nut when it is dried or stored damp. It survives processing. It is invisible, odourless, and — critically — not evenly distributed through a lot. A single hot spot in a consignment can produce a failing composite result, and a lazily drawn sample can miss it entirely.

Practical control:

1. Buy from a processor who controls drying and storage, and ask them to describe it. Sun drying on open ground with no moisture monitoring is a different risk profile from mechanical drying with recorded moisture.
2. Specify the limit against your destination, since EU, US and Gulf limits differ.
3. Insist on a proper sampling plan — multiple incremental samples across the lot, combined into a composite, taken by an inspector you appointed.
4. Ask for the laboratory's limit of quantification. "Not detected" against a method whose detection limit sits above your regulatory limit is not a pass.

The microbiological set matters too, particularly for kernels going into ready-to-eat product without a further kill step. Specify Salmonella absent in 25 g and get it tested; the cost is trivial against a recall.

Reading a cashew price list without being misled

A cashew quotation is usually a grid: grades down one axis, prices across. It looks like a like-for-like comparison between suppliers and rarely is, for four reasons.

The packing assumption. Most quotations assume 10 kg vacuum tins, two per carton. A price quoted on flexi-pouch or bulk bag is not comparable, and the difference is material both in cost and in arrival condition. Establish the packing before you compare numbers.

The broken tolerance behind the grade. Two suppliers quoting W320 may be working to five percent and fifteen percent broken tolerances. The cheaper one is selling you a different product. Ask each supplier what tolerance their price assumes.

Crop year and packing date. Cashew has a real shelf life. A tin packed eleven months ago has months of usable life left, not twelve, and should not be priced as new-pack.

Whether the price includes testing. Aflatoxin and microbiological testing costs money. A supplier who includes a full origin panel in their price is quoting differently from one who does not.

The practical fix is to send every supplier the same written specification — grade, colour tolerance, broken maximum, moisture maximum, aflatoxin limit, packing, crop year — and ask them to quote against it. You will get fewer replies and comparable numbers.

Where the negotiating room actually is

Buyers reflexively negotiate on the headline price per kilo, which is where a processor has least flexibility because raw nut cost dominates it. There is usually more room in four other places:

• Grade mix. Committing to take a processor's brokens and scorched alongside your wholes helps them clear their full outturn, and they will price the wholes better for it.
• Payment terms. An L/C at sight or a larger advance is worth real money to a processor financing raw nut, and can be traded against price.
• Volume commitment across a season rather than spot purchases.
• Packing. If your product tolerates flexi-pouch, you save on both packing and freight density.

Price: what actually moves it

Cashew pricing is more volatile than most buyers expect, and understanding the drivers stops you reading a price movement as a negotiating failure.

Raw cashew nut cost. The dominant input. Because Indian processors buy raw nut on a global market, the kernel price responds to West African crop conditions as much as Indian ones.

Grade and outturn. A processor's economics depend on how many whole kernels they recover from a batch. A poor raw lot yields more brokens, which lifts the price of wholes.

Labour. Shelling and peeling remain substantially manual for premium grades. Labour availability around harvest and festival periods affects throughput.

Currency. Quoted in dollars, cost base in rupees.

Season. The Indian raw nut harvest runs broadly February to May, with processing continuing year-round on stored and imported nut.

Processing, briefly, and why it explains the price

Understanding what happens between raw nut and kernel explains most of what a buyer needs to know about cost and quality.

Raw cashew nut arrives with the kernel inside a hard shell that contains cashew nut shell liquid, a caustic substance that burns skin. The shell has to be softened — traditionally by steam or roasting — before it can be cut. Shelling is then done by machine or by hand, and hand shelling remains common for premium grades because it yields more whole kernels.

The shelled kernel still carries the testa, a thin reddish skin. It is dried to loosen the skin, then peeled, again by machine or by hand. Peeling is where whole kernels most often break, and where the wholes-to-brokens ratio is largely decided.

Finally the kernels are graded by size and colour, usually with a combination of mechanical sizing and human sorting, then conditioned to the target moisture and packed.

Three implications for a buyer:

Labour is the cost, not the raw material alone. The premium for whole kernels reflects the additional care in shelling and peeling, not a different input.

Outturn is the processor's key metric. The proportion of whole kernels recovered per hundred kilos of raw nut determines their margin. Ask about it — a processor will discuss it readily, and it tells you whether you are talking to someone who runs a line.

Hand versus machine is a genuine trade-off. Hand processing yields more wholes and better appearance; machine processing is more consistent and more hygienic. Neither is universally better, and a processor who claims to be fully mechanised while quoting premium whole-kernel outturn is worth a follow-up question.

Cashew nut shell liquid, and why it is worth asking about

CNSL is a by-product with its own market, used in friction linings, resins and coatings. A processor who recovers and sells it has a second revenue stream and, more importantly, has invested in the equipment to handle it — which is a reasonable proxy for whether you are dealing with an integrated processor or a shelling operation.

Container economics

Tinned cashew is dense and stows predictably.

A 20ft container is the standard unit. Cashew weighs out before it cubes out in tins, so a 40ft is rarely the right choice unless you are combining products.

Palletisation is worth specifying. Loose-loaded cartons stow more units but are slower to discharge and take more handling damage; palletised loads lose some capacity and arrive in better condition. For high-grade wholes, pallets usually pay for themselves.

Verifying a cashew processor

The general due-diligence process applies, with three commodity-specific additions.

Ask to see the vacuum and nitrogen line. This is the single piece of equipment that separates an export processor from a repacker, and it cannot be borrowed for an afternoon.

Ask about raw nut sourcing and storage. A processor who buys imported raw nut year-round has a different, and often more consistent, quality profile than one working a single local crop. Neither is better; you should know which you have.

Ask for the outturn. Processors track kernel recovery per hundred kilos of raw nut obsessively, because it is their margin. A processor will discuss it. A trader will not have the number.

Beyond that, verify registrations against public registries, ask for a Certificate of Analysis from a recent commercial shipment rather than from your sample, and appoint your own inspector for pre-shipment sampling. Our guide to verifying an Indian exporter covers that process in full — the layers are identical for nuts.

What goes wrong, and what it looks like

Five failure modes account for most cashew disputes. All of them are visible on arrival, and all of them are preventable in the contract.

Grade slippage. The lot is honest W320 by count but sits at the small end of the range, with more brokens than expected. Prevented by a broken maximum and a count verification on arrival.

Scorched material in a white grade. A percentage of off-colour kernels blended into a white-whole lot. Prevented by a colour tolerance expressed as a maximum percentage of off-colour kernels, with a reference sample held by both sides.

Testa residue. Incomplete removal of the reddish inner skin, visible as patches on the kernel. This is a peeling-quality issue and the most common cosmetic complaint. Specify a maximum percentage of kernels with adhering testa.

Seal failure. Tins that have lost vacuum, from poor seaming or transit damage. The kernels inside will be softer and closer to rancid. Check a sample of tins for lid flex on arrival; specify a remedy for the percentage that fail.

Rancidity. The endpoint of oxygen exposure and time. It presents as an oily, paint-like smell on opening and a stale aftertaste. Largely a function of packing integrity and age, which is why packing date belongs in the contract.

Certification worth asking for

FSSAI licence and Import Export Code are the legal floor. APEDA registration is relevant for many processed food exports. Beyond that:

• ISO 22000 or FSSC 22000 — food safety management, meaningful about the facility
• BRCGS — usually present where the processor already supplies European retail
• HACCP — expected as a minimum for any export processor
• Organic — NPOP, NOP or EU organic, with scope covering the specific product and site
• Kosher and Halal — routine and inexpensive to obtain in India; ask if your market needs them

A processor supplying European or North American retail has usually already been audited by someone more demanding than you, which is worth more than any certificate they hold.

Seasonality and how far ahead to contract

The Indian raw cashew nut harvest runs broadly February to May, varying by region — Tamil Nadu and Andhra earlier, Kerala and Karnataka slightly later, Goa and the Konkan later still. Processing continues year-round because processors carry stored domestic nut and buy imported raw nut through the year.

That year-round processing is why cashew is less seasonal for a buyer than most agricultural products. You can source most grades in most months. What changes through the year is the *mix* and the *price*.

Two planning points:

Contract ahead of the festival demand. Indian domestic demand for cashew spikes ahead of Diwali, and it is large enough to tighten export availability and lift prices for premium whole grades in the weeks before. If you need W180 or W240 in that window, contract earlier.

Expect grade availability to move. A processor cannot choose to produce only wholes. Their output mix follows the raw nut quality, so in a season with poorer raw material, wholes are scarcer and dearer while brokens are plentiful and cheap. A buyer who can flex between grades captures that; one locked to a single grade pays for the rigidity.

Building a second source before you need one

Cashew supply concentrates risk in ways that are easy to miss. A processor's output depends on raw nut they have financed, in a market where raw nut prices move sharply, and their working capital is the constraint. A supplier who was reliable for two seasons can simply be unable to buy raw nut at a price that works in a third.

The practical protection is the same as in any commodity: qualify a second processor, and run them at a standing minority share rather than holding them as a dormant contact. A supplier who has shipped against your specification once can scale within weeks. A phone number cannot.

The secondary benefit is price discovery. Two processors quoting the same written specification tell you what that specification costs. One processor tells you what one processor charges — and in a commodity where the headline grade conceals so much, that difference is worth more than most negotiations.

A first-order checklist

1. Match grade to end use — do not buy wholes for a product that grinds them.
2. Write the eight-point specification, including broken tolerance and moisture.
3. Confirm raw nut origin if you intend to make an origin claim.
4. Confirm packing: 10 kg vacuum-nitrogen tins unless you have a specific reason otherwise.
5. Ask for a commercial Certificate of Analysis, not a sample one.
6. Appoint your own inspector for pre-shipment sampling and aflatoxin testing.
7. Agree the remedy for out-of-tolerance brokens before shipment, not after.
8. Pay against conforming documents, not against a photograph of the load.

Where Katalyzon fits

Cashew rewards precision more than negotiation. The grade tells you kernel size and roughly colour, and nothing about moisture, brokens, testa residue, aflatoxin or age — which is where the value actually sits. Buy the grade your product needs rather than the grade that signals quality, insist on vacuum-nitrogen tins, set a broken tolerance with a remedy attached, and test for aflatoxin at origin on a sample your own inspector drew. Do that and Indian cashew is a deep, competitive and straightforward supply base.

We do not trade cashew and we take no position in the goods. What we do is establish whether the counterparty in front of you owns a processing line or resells someone else's, verify their registrations against evidence we can show you, and coordinate the sampling and inspection that decides whether a lot is what the contract says.

To see indicative specifications, HS codes and MOQs before committing to anything, browse the Dry Fruits & Nuts category. For the surrounding process — Incoterms, documentation, payment structures and how classification works — our guide to importing spices from India covers ground that applies identically to nuts, and our HS code guide explains the whole-versus-processed splits that also govern heading 0801. To have the desk scope it for you, post a requirement — every brief is read by a person before anything is routed, and your details stay masked until you accept a quote.