Liquor Packaging Hardware Inspection SOP

This page explains how to inspect decorative metal parts used on liquor packaging. The inspection covers appearance, fit and secure closure retention; it is not a substitute for the approved drawing or master sample. If a discrepancy is found, isolate the lot before measuring or packing.

Find a problem and contain it first

Stop packing, mark the batch and affected quantity, and separate the suspect parts. Then compare the artwork, drawing and physical master sample before deciding on rework or another disposition.

Appearance and decoration

Inspect all outer and inner surfaces for blistering, pitting, stains, contamination and handling damage. Compare colour, gloss and upper/lower component matching with the approved sample. Printing, epoxy fill and decoration must be complete, correctly positioned and consistent with the approved artwork.

Dimensions and assembly function

Measure all specified critical dimensions and retain the required report. Check the internal teeth or retention features, assembly-face smoothness, risk of burrs and fit with the mating plastic or bottle component. Confirm closing, retention and removal behaviour using the agreed method.

Packaging and shipment

Verify the required test reports, batch matching between paired plated parts, tray orientation, cleanliness and quantity. Shipment records should include the final inspection result and the applicable test evidence.

SOP image sheets

Figure D1 — Inspection overview using non-branded product examples.

Figure D2 — Appearance, colour matching, decoration and cleanliness checks.

Figure D3 — Dimensions, internal features, burr risk and assembly-face checks.

Figure D4 — Test-report review, tray packing, quantity, batch matching and shipment records.