Empty Bottles vs Liquid-Filled
Empty bottles are allowed through security. Filled bottles over 100ml are confiscated unless exempt.
Empty bottles—plastic, metal, or glass—sail through security. As soon as they contain more than 100ml of liquid, they fall under the LAG rule unless covered by baby food or medical exemptions. Keep lids off if officers request a visual check.
Key highlights
- Pour out all liquids, including melted ice, right before joining the queue.
- Separate bottle lids/caps and keep them in the tray if officers request it.
- Wipe condensation to avoid confusing scanners.
Security focuses on liquid volume, not container size. Showing a bone-dry bottle proves compliance instantly.
Vacuum flasks, metal tumblers, and collapsible silicone bottles are all acceptable empty. Residue can trigger swab tests, so rinse thoroughly before travel.
Once you refill past security, remember to empty the bottle again before any additional checkpoints on multi-leg itineraries.
When allowed vs. when not
✅ When it's allowed
- •Use wide-mouth bottles so officers can easily inspect the interior.
- •Carry a small carabiner to hang the bottle from your bag after refilling.
- •If you rely on electrolyte mixes, pack single-serve sachets and add them only after clearing security.
🚫 Exceptions / conditions
- •Don’t argue if officers insist on a swab test—metal walls often trigger alarms.
- •Avoid hiding liquids inside insulated sleeves; scanners detect density differences.
- •Don’t fill the bottle while still in the queue; wait until you have fully cleared screening.
After security
- ✔Use drinking fountains or water stations to refill—Indian airports are adding them near each gate.
- ✔Empty the bottle again before transiting through another security checkpoint.
- ✔Label your bottle with initials so it doesn’t get mixed up in crowded trays.
Container quick reference
| Container | Empty allowed? | Notes |
|---|---|---|
| Reusable plastic bottle | ✅ | Keep lid off if asked |
| Vacuum flask | ✅ | May be swabbed |
| Thermal mug with foam sleeve | ✅ | Remove sleeve for inspection |
Frequently asked questions
Can I carry an empty wine bottle as a souvenir?+
Are collapsible hydration bladders allowed?+
What about soda cans I plan to recycle?+
Travel tips
- ✈️Mark fill lines (250ml, 500ml) with a paint pen so you can prep baby or medical liquids accurately after security.
- ✈️Use a silicone sleeve to improve grip once you refill; remove it beforehand if security requests a clear view.
- ✈️Keep a miniature drying cloth to wipe bottles before placing them on laptops or documents in your bag.
Related guides
Official references
DGCA guidelines — simplified
Verified on: 6 Dec 2025
Disclaimer: Aviation and security rules change frequently. Always confirm with your airline, airport help desk, or CISF officers before you travel.