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customs guides

A focused set of CarrySizer guides tagged customs. Thin tag pages stay noindex until they have enough useful depth.

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Rules

Can You Bring a Metal Detector on a Plane?

Handheld pinpointers and ground-search metal detectors are allowed on planes. Battery rules apply. Some countries restrict where you can use them after you

Rules

Can You Bring a Walkie-Talkie on a Plane?

Walkie-talkies and two-way radios are allowed in carry-on and checked bags. Spare lithium batteries must travel in carry-on. Customs rules vary internationally.

Rules

Can You Bring CBD Oil on a Plane? Complex Rules

Hemp CBD on US domestic flights is a gray area. International travel with CBD carries serious legal risk. Rules by country and what to avoid.

Rules

Can You Bring Cheese on a Plane?

Hard vs soft cheese rules for carry-on, liquid rules for brie and cream cheese, and customs restrictions for international cheese travel.

Rules

Can You Bring Cigars on a Plane? Security vs Customs

Cigars are allowed through airport security in carry-on and checked bags. The real restrictions are at customs on arrival. Here's what to know.

Rules

Can You Bring Dried Fruit on a Plane?

Dried fruit rules for carry-on and checked bags, international biosecurity restrictions for Australia, New Zealand, and the USA, and what to declare.

Rules

Can You Bring Flowers on a Plane? Rules Vary

Cut flowers pass airport security easily, but international border rules vary widely. Australia and New Zealand have very strict restrictions.

Rules

Can You Bring Food on a Plane? Carry-On Food Rules

TSA rules on solid food, liquid foods like sauces and yogurt, international customs restrictions, and the best foods to pack for long flights.

Rules

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.

Rules

Can You Bring Frozen Food on a Plane? Ice Rules

Frozen solid food is allowed in carry-on and checked bags. Ice pack rules depend on whether they're frozen solid. Customs rules apply at arrival.

Rules

Can You Bring Nuts on a Plane?

Nuts in carry-on and checked baggage — security rules, customs by country, peanut butter liquid rules, and airline allergy policies explained.

Rules

Can You Bring Plants on a Plane? Strict Rules

Plants pass airport security but face strict agricultural rules at international borders. Australia, New Zealand, and the US all restrict imports.

Rules

Can You Bring Protein Bars on a Plane?

Protein bars, energy bars, and meal replacement bars in carry-on and checked baggage — security rules and customs restrictions by country.

Rules

Can You Bring Spirits on a Plane? Whiskey, Vodka & More

Full rules for carrying spirits in carry-on and checked baggage, duty-free allowances, and customs limits by country.

Rules

Can You Bring Tea on a Plane? Bags, Loose Leaf, and Brewed

Dry tea bags and loose-leaf tea are unrestricted in carry-on. Brewed tea follows the 100 ml liquid rule. Customs rules vary by destination. Full guide here.

Rules

Can You Bring Vegetables and Fruit on a Plane?

Fresh fruit and veg pass airport security everywhere. Customs rules on arrival are what matter — especially for international flights to the US, EU, Australia

Rules

Can You Bring Vitamins on a Plane? Pills, Powders & More

Rules for vitamins and supplements in carry-on and checked baggage — pills, powders, liquids, gummies — plus customs tips by country.

Rules

Can You Bring Wine on a Plane?

Wine in carry-on vs checked bags: liquid rules, duty-free exceptions, checked bag packing tips, and country customs limits explained.

Rules

Customs Declaration with Carry-On: What You Must Declare

What to declare at customs when traveling with carry-on only: currency, food, gifts, green vs red channel, US CBP One app, UK post-Brexit rules, and EU limits.

Rules

Bringing Wine & Alcohol in Your Carry-On

TSA rules, duty-free exceptions, international customs limits, and practical strategies for flying with wine and alcohol.