The smallest toiletry bottle can become the biggest delay at airport security. Across the European Union, the standard cabin-baggage rule remains simple: liquids, aerosols and gels must be in individual containers of no more than 100 ml, placed in a transparent resealable bag with a maximum capacity of one litre.
The detail that catches travellers out is the container size. A half-empty 200 ml bottle is still a 200 ml container and may be rejected at screening.
1. Treat creams and gels as liquids
“Liquids” is broader than water and drinks. Toothpaste, sunscreen, liquid foundation, perfume, sprays, gels, pastes and similar products all fall within the cabin restriction. If the product can be poured, sprayed, spread or squeezed, plan for it to be screened as a liquid.
2. Check the container, not the amount left
Each container should hold no more than 100 ml. Decanting a product into a clearly marked travel-size bottle is safer than carrying a larger package with only a little product remaining.
3. Use one transparent one-litre bag
The containers should fit comfortably inside a transparent, resealable plastic bag with a maximum capacity of one litre. Overstuffing the bag can slow screening and makes it harder to show that every item complies.
4. Keep medicines accessible
Essential medicines needed during the trip may be permitted in quantities greater than 100 ml. Security staff may ask you to demonstrate their authenticity or explain why they are needed. Keep prescriptions, pharmacy labels or supporting documentation readily available, and check the departure airport’s instructions before travel.
5. Baby food and milk have an exception
Baby food and milk required for the journey can also be carried in quantities larger than 100 ml. They may receive additional screening, so allow extra time and keep them separate from ordinary toiletries.
6. Do not open sealed duty-free liquids
Duty-free liquids can generally travel in cabin baggage when the item and receipt remain sealed inside the security bag supplied at purchase. Opening or repacking the bag during a connection can create a problem at the next screening point.
7. Verify the airport and airline before leaving
The EU framework sets the common security baseline, but airports can use different screening equipment and operating procedures. Airlines also set their own cabin-bag size and weight limits. Check both the departure airport and the operating airline—especially on itineraries involving transfers outside the EU.
A quick packing routine
- Move containers larger than 100 ml to checked baggage.
- Place permitted toiletries in the transparent bag before leaving home.
- Keep medicines, baby items and their supporting documents easy to remove.
- Leave duty-free liquids sealed with the receipt.
- Recheck the rules for every airport on a connecting itinerary.
Security rules can change in response to operational requirements. A two-minute check on the official airport page before departure is more reliable than advice remembered from an earlier trip.
Official references
Photo: Gabriel Crismariu / Unsplash License.






