Buyer's Guides
A buyer's guide to medical packaging — when to use grip seal bags, specimen transport bags and self-seal sterilisation pouches, and how to size and store them.
OMS Clinical Team
Product Specialists
Packaging is the least glamorous line on a medical order and one of the easiest to get wrong. The wrong bag fails an audit; the wrong pouch fails a sterilisation cycle. This guide covers the three families UK healthcare buyers order most and how to choose between them.
| Type | Primary use | Closure | Key feature |
|---|---|---|---|
| Grip seal bag | General storage, small parts, dispensing | Press-to-close zip | Reusable, clear, economical |
| Specimen transport bag | Pathology samples in transit | Peel-and-seal, tamper evident | Separate document pocket |
| Sterilisation pouch | Instruments through an autoclave | Self-seal adhesive strip | Process indicator changes colour |
Grip seal bags are the workhorse. They are clear, resealable and cheap, which makes them suited to storing small components, splitting bulk consumables, and keeping loose items together in a drawer or trolley. They are not a substitute for a specimen bag and should not be used to transport biological samples.
A specimen bag has a job a grip seal bag cannot do: it separates the sample from the paperwork. The integral document pocket keeps the request form dry and legible if the sample leaks, and the tamper-evident seal shows whether the bag has been opened in transit.
If the request form travels in the same compartment as the sample, one leak costs you both the specimen and the paperwork.
Self-seal sterilisation pouches carry instruments through a steam autoclave and keep them sterile until point of use. The printed process indicator changes colour once the cycle conditions have been met — it confirms the pack has been through a process, not that the contents are sterile, which is why cycle records still matter.
Packaging degrades. Adhesives dry out, films yellow, and pouches stored in damp or hot conditions lose seal integrity. Store flat, off the floor, away from direct sunlight and heat, and rotate stock so older packaging is used first.
Optimised Medical Supplies stocks over 350 medical packaging lines including grip seal bags, specimen transport bags and self-seal sterilisation pouches. Order before 4pm for next-day dispatch on stocked items.
