Cashew Kernels

Two attributes define every cashew kernel grade. Size, expressed for whole white kernels as an approximate count per pound — a W320 is a kernel of which roughly 300 to 320 make up a pound. Integrity and colour, which separates whole kernels from butts, splits and pieces, and white kernels from scorched ones.

The counting convention is the part that trips up new buyers: a higher number means a smaller kernel, because more of them fit in a pound. W180 is the largest grade in normal supply and W450 the smallest whole grade. Nothing in the code refers to weight, quality or price directly — it is purely a size statement.

Colour is handled separately from size. A scorched whole kernel is the same size as its white equivalent; what differs is that it darkened during drying or peeling. That single distinction explains most of the price gap between white and scorched grades, and it is why buyers whose product masks colour can buy scorched material at a discount without any loss of function.

The question that decides the grade is not "what is best" but "will the buyer of the finished product see the individual kernel?"

If the answer is yes — a retail pack of whole cashews, a gift tin, a bowl on a hospitality table — then size and colour are product attributes and the whole white grades earn their premium. If the answer is no — a cashew butter, a bakery inclusion, a coated snack, a sauce — then paying for whole white kernels buys an attribute that is destroyed in the first processing step.

This single question resolves most grade decisions correctly, and it is the reason a food manufacturer buying W320 for a paste line is usually overpaying. The application-specific guides work through it in detail: roasting, retail and food manufacturing.

Cashew kernels are packed to exclude oxygen, because the fat in the kernel oxidises on exposure to air and the result is rancidity that no amount of careful shipping will reverse. The two formats in general use are vacuum-packed tins and vacuum-packed flexible pouches, both placed in outer cartons.

Tins are rigid, protect the kernels physically and hold vacuum reliably; they cost more and weigh more. Flexi pouches are lighter and cheaper and have become common, but they depend on the seal and on careful handling — a pouch that loses vacuum in transit has lost its protection entirely, and the damage is not visible until the carton is opened.

Which format suits a buyer depends on transit length, destination handling and what happens to the product on arrival. This is covered on cashew kernel packaging and vacuum packing.