A bottle of duty-free liquor or perfume bought at your departure airport looks safe enough — sealed in a tamper-evident bag with the receipt tucked inside. But if your trip involves a connection and you have to pass through security again at the transit airport, that seal isn't always honored. Plenty of travelers have had a duty-free purchase confiscated at the second checkpoint, even though nothing was ever opened.
🔒 What a STEB bag actually is
A STEB (Security Tamper-Evident Bag) is the clear, sealed bag duty-free shops use to pack liquids over 100 ml along with the receipt. The seal is proof that nothing has been opened since purchase, which is exactly why it's allowed past security despite exceeding the usual 100 ml limit.
The trouble starts when a connection requires re-clearing security — a terminal change, or moving into a different security zone. Some airports still honor an intact STEB bag from elsewhere; others don't, and if yours doesn't, the contents simply get thrown out.
✈️ Where the risk is highest
- Connecting within the same terminal and security zone — risk is minimal
- Changing terminals or security zones (for example, international to domestic) — risk is high
- Self-transfer itineraries where you collect your own bags and clear security again — see the self-transfer flights guide
- More than 24 hours between purchase and your final flight — in many jurisdictions the bag is no longer considered valid
🛡️ How to avoid losing your purchase
- If you're unsure whether your connecting airport requires a second security screening, hold off on duty-free shopping until the gate for your final flight
- Ask staff directly whether your connecting airport recognizes STEB bags — they usually know
- Pack anything you really don't want to lose in checked luggage instead, if your airline allows it
- Keep the receipt and the seal untouched until your final checkpoint — an opened or damaged bag is automatically treated as invalid
Whether or not your bottle gets confiscated, the airport won't compensate you — this is a security rule, not a service failure.
🌍 A practical example for travelers from Georgia
Most flights from Tbilisi to Europe connect through hubs like Istanbul, Dubai or Doha. If the same security zone carries through to your final destination, a STEB bag usually isn't an issue — but rules change over time, so when in doubt, check with your airline or the airport's website before you buy.
For more on liquid restrictions in general, see the airport liquids rules guide and the full duty-free shopping guide. Compare connections and search flights on Travel365's price calendar.
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