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Liquids Rule guides
Practical guidance about liquids rule, with relevant airline rules, restrictions, and packing decisions in one place.
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Can You Bring Glass Bottles on a Plane?
Empty glass bottles, wine, perfume, olive oil — what's allowed in carry-on vs. checked luggage and how to pack glass safely so it arrives in one piece.
Carry-On Rules for First-Time Flyers: Complete Beginner's Guide
Everything a first-time flyer needs to know about carry-on bags: sizes, weight limits, liquids, security, and what to expect at the airport.
Airport Liquids Rules 2026: 100ml, CT Scanners & More
US 3-1-1, UK/EU 100ml, CT scanner exemptions, duty-free rules, medical and baby food exemptions — everything you need to know before security.
Airport Security Scanner Types: What They Mean for Your Bag
X-ray, CT, millimeter-wave, backscatter — how each airport security scanner works and what it means for liquids, electronics, and your carry-on bag.
Can You Bring a Candle on a Plane? Rules for All Candle Types
Solid wax candles are allowed in carry-on and checked bags. Gel candles, liquid wax, and flame-gel products have different rules. Full breakdown here.
Can You Bring a First Aid Kit on a Plane?
Most first aid supplies are allowed in carry-on. Liquid antiseptics over 100 ml must go in checked bags. Full item-by-item rules for TSA and international
Can You Bring a Jar of Peanut Butter on a Plane?
TSA classifies peanut butter as a liquid. A standard 340g jar will be confiscated. Here's what size is allowed and how to travel with it safely.
Can You Bring a Sandwich on a Plane?
Yes — solid food is allowed in carry-on bags. Learn TSA rules for sandwiches, spreads, and what to watch out for on international flights.
Can You Bring a Snow Globe on a Plane?
Snow globes contain liquid and are subject to the 3-1-1 rule. TSA bans globes larger than a tennis ball from carry-on. Here's what to know.
Can You Bring a Thermos on a Plane? Rules for Carry-on
An empty thermos is always allowed in carry-on. A thermos with liquid over 100ml is not. Here is what to do before and after security.
Can You Bring Aerosols on a Plane? (2026 Rules)
Personal aerosols under 100 ml are allowed in carry-on inside your liquids bag. Flammable sprays, paint, and compressed air are banned. Full rules here.
Can You Bring Alcohol on a Plane? Yes, With Limits
Mini bottles fine in carry-on under the 100ml rule. Duty-free bottles allowed sealed. Checked bags allow up to 70% ABV. No drinking your own alcohol on board.
Can You Bring Coffee on a Plane? Beans, Grounds, Yes
Coffee beans and ground coffee are fully allowed in carry-on and checked bags. Brewed coffee is a liquid — the 100ml rule applies before security.
Can You Bring Deodorant on a Plane? Solid vs. Spray
Solid stick deodorant has no restrictions in carry-on. Roll-on, aerosol, and gel deodorant must be 100ml or under and go in your liquids bag.
Can You Bring Essential Oils on a Plane? Carry-on Rules
Essential oils are liquids subject to the 100ml rule. Most bottles are 10–30ml and fine in carry-on. Larger diffuser oils must go in checked bags.
Can You Bring Eye Drops on a Plane?
Most commercial eye drop bottles are 10–15ml — well under the 100ml limit. Prescription and medically necessary drops get a special exemption. Full rules here.
Can You Bring Food Coloring on a Plane?
Liquid and gel food dyes follow the 100 ml carry-on rule. Powder food coloring has no liquid restrictions. Here's everything you need to know.
Can You Bring Food on a Plane? Rules by Type
Solid food is allowed in carry-on. Liquids and gels like yogurt and peanut butter face the 100ml rule. Baby formula is exempt. Here's the full breakdown.
Can You Bring Hairspray on a Plane? Rules Explained
Hairspray in carry-on must be 100 ml or under. In checked bags, flammable aerosols are allowed up to 500 ml per can with a 2-litre total toiletries limit.
Can You Bring Hot Food on a Plane?
Temperature is not a TSA concern — hot food is allowed through security. But liquid-based foods like soup and curry face the 3-1-1 rule.
Can You Bring Hot Sauce on a Plane?
Hot sauce is a liquid. A standard Tabasco 148ml bottle fails the 100ml rule. Mini bottles and travel sizes under 100ml are allowed in carry-on.
Can You Bring Ice Packs on a Plane? TSA Rules Explained
Frozen solid ice packs are allowed in carry-on. Slushy or liquid gel packs follow the 100ml rule. Medical exceptions apply. Full rules here.
Can You Bring Ketchup on a Plane?
Ketchup and condiments follow the 100 ml liquid rule in carry-on. Full-size bottles are banned from carry-on but allowed in checked baggage. Individual packets
Can You Bring Olive Oil on a Plane? (Carry-On & Checked)
Olive oil is a liquid. The 100ml carry-on rule applies. What size bottles are allowed, how to pack checked bottles safely, and souvenir oil from Europe.
Can You Bring Perfume on a Plane? (2026 Rules)
Perfume under 100 ml goes in your liquids bag. Over 100 ml must be checked. Solid perfume has no size limit. Duty-free risks at connecting airports explained.
What Happens to Your Carry-On at Security
How airport security screens carry-on bags, what triggers extra checks, electronics and liquids rules, and the fastest way through the checkpoint.
Deodorant in Carry-On: Rules for Every Format
Stick, roll-on, aerosol, gel, crystal — each deodorant format has different carry-on rules. Here is what you can bring and in what size.
Carry-On Hand Cream and Lotion Rules: What You Need to Know
Lotions and creams in carry-on are subject to the 100ml liquid rule. Solid bars and body butter are exempt. Here's how to pack moisturizers without issues.
Carry-On Sunscreen Rules: Liquids, Aerosols, and Sticks
Liquid and aerosol sunscreen must follow the 100ml rule in carry-on. Solid mineral sticks have no restrictions. Best strategy for beach destination trips.
Duty-Free and Carry-On Rules: What You Can Actually Bring
How duty-free purchases interact with carry-on liquid rules, STEB bags, transfer connections, and customs limits for UK, EU, and US travellers.