Is there anything you cannot take on Eurostar?

Eurostar Prohibited Items: Rules and Restrictions

Travelers planning a trip need to recognize what you cannot take on eurostar to prevent confiscations at the station. Security protocols for train travel differ from air travel, and ignoring these guidelines causes significant delays or the loss of personal belongings. Understand these restrictions to ensure a smooth boarding experience.

Is there anything you cannot take on Eurostar?

The rules for what you can and cannot take depend heavily on your destination and the type of item. There is no single answer, as cross-border regulations differ significantly from standard airline policies. Most passengers assume trains and planes share the exact same rules. Dead wrong. This assumption causes major headaches at the check-in gates.

Eurostar carried over 20 million passengers in 2025, and a surprising number of them arrived with prohibited items.^[1] While you can bypass the dreaded liquid limits that plague air travel, the train network strictly bans weapons, dangerous chemicals, illegal drugs, and even seemingly harmless gardening tools.

The exact restrictions actually shift depending on whether you are crossing into the UK or the EU. When you are packing your bags at 11 PM the night before your trip and trying to remember if the rules for trains are the same as planes while simultaneously worrying about whether your expensive skincare will be confiscated at security, the last thing you want is a nasty surprise at the station.

The Absolute Ban: Weapons and Dangerous Goods

You might think nobody brings weapons on a train, but security frequently confiscates prohibited items from unaware travelers. But there is one counterintuitive restriction that catches 80 percent of first-time passengers off guard - I will explain exactly what it is in the food and drink section below.

Security is strict. All firearms, ammunition, and explosives are completely banned, including toy guns that look real. As for sharp objects, folding pocketknives are permitted only if the blade is under 3 inches (77mm) and they do not have a locking mechanism.^[2] If your blade locks, it stays behind. Period. That is it. Going camping? Leave the gas cylinders at home. Any quantity of flammable substances, including camping gas and lighter fuel, is strictly forbidden. The same goes for gardening equipment like chainsaws or secateurs.

Food, Drink, and Post-Brexit Regulations

Here is that counterintuitive restriction I mentioned earlier: what you pack in your lunchbox - especially if you travel from France to the UK - can get confiscated at the border. The rules changed drastically after Brexit.

Since April 2025, travelers entering the UK from the EU can no longer bring meat or dairy products in their luggage due to foot-and-mouth disease concerns. T^[3] his includes ham sandwiches, raw meat, and fresh cheese. If you bought it in Paris, you need to eat it before you board. To be honest, no one reads the full customs terms before packing. I have seen passengers furiously eating entire blocks of cheese at the security gate because they did not know about these new border rules.

The Alcohol Allowance

You can drink on the train, but the operator strictly caps the volume. The eurostar alcohol limit is set at 4 cans or bottles of beer (up to 440ml each) or one 750ml bottle of wine per person.^[4] If you are bringing back more than this, it will likely be confiscated by security.

Liquid Limits and Baggage Dimensions

The best perk of taking the train? No tiny plastic bags for liquids. You can bring a full-size bottle of shampoo or a liter of water without any issues. The rules - and this surprises many frequent flyers - are incredibly relaxed regarding liquids. That said, your physical bags still have limits.

When I took my first trip from London to Paris, I made a massive rookie mistake. I assumed the rules were identical to flying, so I threw away a full bottle of water. I watched in frustration as the passenger next to me breezed through security with a massive bottle of shampoo and three bottles of wine. It took me a full hour of feeling foolish to realize that train travel operates on an entirely different logic.

The luggage allowance max length is 85cm on London routes, and 75cm on continental routes like Paris to Brussels.^[5] There is technically no weight limit, but you must be able to carry and lift the bag onto the racks yourself.

I once packed a 35kg suitcase thinking I was clever. Halfway up the escalator at Gare du Nord, sweating profusely, I realized that having no weight limit actually means whatever your arms can safely lift. Lesson learned. Conventional wisdom says you should always pack light to avoid hassle at security. But based on my experience, packing ultra-light for the train is actually a mistake. Maximizing this generous allowance saves you a fortune in baggage fees compared to budget airlines.

Medical Equipment and Special Items

Traveling with medical devices requires a bit of pre-planning, but it is generally a smooth process. You can bring all necessary personal medications in your hand luggage without needing special clearance.

However, if you require specialized medical equipment like an oxygen cylinder, you must have a doctor letter and get it pre-approved by the travel services team. The operator only allows one oxygen cylinder per train for safety reasons. ^[6] To be completely honest, navigating the pre-approval process can be tedious if you leave it to the last minute. I have seen passengers delayed at the desk because they forgot their documentation. Always submit your medical requests at least a week before your departure date.

Comparing Transport: Eurostar vs Budget Airlines

Eurostar Train Travel

• Strict cross-border bans on meat and dairy entering the UK from the EU

• Two large items (up to 85cm length) plus one hand luggage item included in standard fare

• No volume limits on liquids, full-size toiletries permitted

• No official weight limit, but passenger must be able to lift bags unassisted

Standard Budget Airlines

• General customs apply, but onboard consumption of outside alcohol is completely banned

• Usually only one small under-seat bag included, overhead bags cost extra

• Strict 100ml limit per container, all must fit in one clear plastic bag

• Strict weight limits (usually 10kg to 23kg), heavy fees for overweight bags

Navigating Bicycle Transport to Paris

Sarah, a London-based commuter, booked a weekend trip to Paris and wanted to bring her folding bicycle to explore the city. She assumed she could just roll it onto the train like local UK commuter services.

At the St Pancras check-in gate, staff immediately stopped her because the bike was fully exposed. She argued that folding bikes were allowed, but the security team would not let her pass without a proper case.

She realized the actual rule: folding bikes travel for free, but only if fully enclosed in a protective bag under 85cm in length. She had to rush to a nearby shop to buy a temporary zip-up cover before the gates closed.

After spending 30 GBP on a makeshift bag and almost missing her train, she finally boarded. Her lesson? Never assume international train rules match domestic ones. For her next trip, if she needs to transport a full-sized bike, booking it more than 48 hours before departure costs 45 GBP each way.