The main cashew kernel grades like W240 and W450 are part of the international “W” (White Whole) size‑grading system, where the number indicates how many whole kernels you get per pound (≈454 g).
Higher numbers mean smaller nuts and lower prices, while lower numbers mean larger, more premium nuts.
Meaning of “W240” :
Approx. 220–240 kernels per pound, so each nut is medium‑large.
Considered a popular mid‑range whole‑white grade: good size, clean color, and balanced price; often used in nut mixes, snacks, and export packs.
Meaning of “W450”:
About 400–450 whole white kernels per pound, so the nuts are noticeably smaller than W240.
Seen as a budget‑friendly whole grade, used in roasted snacks, bakery products, and processed foods where very large nuts are not needed.
Other common “W” grades (for context) :
W180: “King of cashews” – largest whole white, only about 170–180 per pound; premium, for gifting and high‑end retail.
W210: Large whole, around 200–210 per pound; slightly smaller than W180 but still high‑end.
W320: About 300–320 per pound; the most common export grade, used in snacks and confectionery.
Description provided by indian stalwart global sourcing company.