Buyer guides / Quality & grades
Bulk walnut kernel specifications for distributors
Build a walnut kernel purchase specification covering size mix, color, tolerances, samples and X-ray inspection.
A repeatable kernel order starts with a specification your supplier and customer can both check. Phrases such as “light halves” can leave room for different interpretations of color and acceptable breakage.
Define what you will check at receiving
- Size mix: Define the size bands and the acceptable percentage by weight of halves, pieces and fines.
- Color: Agree on a reference sample or image, and review samples under comparable lighting.
- Defects: Agree how shell fragments, damaged pieces and other defects will be defined, sampled and recorded.
Keep sample approval tied to the order
Record the sample lot, approval date and agreed specification on the purchase order. Ask how the shipment lot will be identified. For repeat orders, agree on when a new sample is needed and how the parties will handle a lot outside the accepted limits.
Ask what inspection evidence is available
MingDa Food uses X-ray inspection to help detect foreign material in walnut kernels and oversees processing through packing. Review our walnut quality control process and include any lot-level test or inspection records your customer requires so we can confirm availability.