Summary of prohibited items in suitcases | Explanation of checked baggage and carry-on baggage

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Update date: 2025.12.02
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Before boarding the plane, you may be wondering, "Is it okay to bring this on?" or "What if it gets confiscated?"

Many people must be worried about this.
In particular, the differences in rules for carry-on baggage and checked baggage , as well as restrictions on carry-on items when entering Japan , are complicated.

Every year there is a constant stream of trouble.

In this article,

・Items prohibited in carry-on baggage

・Items prohibited in checked baggage

・Foods and plants that cannot be brought into Japan

We have organized the information in an easy-to-understand manner.

If you are planning a trip soon, be sure to check before you leave so you can start your trip with peace of mind.

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table of contents

1. Items prohibited in carry-on baggage

2. Items prohibited in checked baggage

3. Items that require special care when bringing into Japan

summary

FAQ (Frequently Asked Questions)

1. Items prohibited in carry-on baggage

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Carry-on luggage is one of the most stringent categories of airport security checks.
In addition to the global standards, we have compiled a list of items that are particularly likely to be confiscated at Japanese airports.

table of contents

1. Liquids (containers of 100ml or more)

2. Sharp objects (knives and tools)

3. Batteries (large capacity batteries)

4. Hazardous materials (sprays)

5. Anything that could be used as a weapon

1. Liquids (containers of 100ml or more)

The biggest problem with baggage being confiscated is liquids.

✔ Basic rules (international)

・Containers must be 100ml or less

-Pack everything in a clear zipper bag of 1 liter or less

・Up to one bag per person

It is not widely known that even if the amount is less than 100ml, it is not OK if the total amount exceeds 1L .

Examples of items that are likely to be confiscated

・Lotion (150ml-200ml bottle)

・Makeup remover

・Sunscreen

Japanese airports are very strict about liquid rules and anything that doesn't meet the standards will be confiscated.

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2. Sharp objects (knives and tools)

Knives are not permitted to be carried on board on international flights.

Examples of what not to do:

·knife

·cutter

・Razor (with removable blade)

The 6cm blade length rule for hairdressing scissors

If the blade is less than 6cm, it may be permitted.
At Japanese airports, safety is a priority and they are often confiscated , so it is safer to put them in your checked luggage.

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3. Batteries (spare batteries, large capacity batteries)

Batteries are the most regulated item for air transport.
You must follow the basic rule that no checked baggage is allowed, only carry-on baggage is allowed .

Examples of what is not allowed:

・Mobile battery with a capacity of over 160Wh

- Batteries without safety standards labeling

- Large capacity batteries for electric skateboards, etc.

Points to note:

・Make sure to pack your mobile battery in your carry-on luggage

・Japan strictly checks batteries that do not have a watt-hour (Wh) rating

・Please note that "no markings = likely to be confiscated"

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4. Hazardous materials (sprays and flammable gases)

Due to changes in air pressure on board, the use of sprays is strictly restricted.

Examples of items that cannot be carried on board:

・Insect repellent spray (flammable)

・Hairspray

・Antiperspirant spray

Anything that says it uses flammable gas, such as cosmetic mist sprays, is completely unacceptable .

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5. Potential weapons

It is expressly prohibited.

example:

・Golf clubs

·bat

・Climbing poles

Anything that could be used as a weapon is not permitted on board.

🚫 手荷物で持ち込み禁止のアイテム一覧

🧴
液体物（100ml以上の容器）
化粧水・香水・日焼け止め・飲み物など
🛠️
鋭利物（刃物・工具類）
ナイフ・カッター・ハサミ・ドライバーなど
🔋
バッテリー類（規格外）
160Wh以上・表記なしのモバイルバッテリー
💨
可燃性ガスを使用したスプレー類
虫よけ・ヘアスプレー・制汗スプレーなど
⚠️
武器となる可能性がある物
ゴルフクラブ・バット・ストック類
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2. Items prohibited in checked baggage

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When it comes to checked baggage, the most obvious concerns are "weight restrictions" and "risk of damage," but
In fact, the rules for what you can't bring are more complicated than those for inside an airplane .
Especially on international flights, airlines, countries, and dangerous goods regulations are involved,
If you pack your luggage without knowing the rules, it may be confiscated at the check-in counter or you may have to repack it.

table of contents

1. Lithium battery

2. Flammable and dangerous materials

3. Valuables and expensive items

4. Fragile items

5. Perishable and perishable foods

1. Lithium battery (spare battery/mobile battery)

This is a standard rule that baggage is not allowed.

Lithium-ion batteries are prohibited from being checked in under international standards due to their high risk of fire .
Mobile batteries are only allowed in carry-on luggage.

Examples of what not to do:

・Mobile batteries (all capacities)

・Spare battery for camera

・Replacement batteries for drones

Some home appliances cannot be checked in because the batteries cannot be removed , so these are also prohibited.

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2. Flammable and dangerous materials (sprays, gas, fireworks, etc.)

Checked luggage is also very strict regarding dangerous items.

An example of something completely wrong:

・Fireworks and crackers

・Lighter gas cartridges

・Camping gas canisters (OD canisters, CB canisters)

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3. Valuables and expensive items (prohibited due to the risk of theft and damage)

Airlines' rules state that they cannot be placed in checked baggage .

Examples of what not to do:

・PC, tablet, camera

・Cash and credit cards

・Passport and important documents

The reason is simple: there is a high risk of damage, loss, or theft, and they are not covered by insurance .

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4. Fragile items (glass products, precision equipment)

Checked luggage is subject to at least a few tosses and bangs,
The rules strongly recommend that you do not bring in fragile items.

Examples of bad practices (or things to avoid):

・Glass bottles and ceramics (liquor bottles are particularly fragile)

・Tableware

・Precision equipment (external hard drives, drones, professional equipment)

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5. Perishable and perishable foods

These are items that are "prohibited" or "strongly discouraged" by the regulations of the country or airline.

Examples of what not to do:

・Raw meat, fresh fish, frozen foods

・Foods with particularly strong odors (fermented foods, pickles)

・Ice or dry ice (quantity limited)

Please note that for international flights, advance declaration is often required.

📦 預け荷物で持ち込み禁止・注意のアイテム（要チェック）

🔋
リチウムバッテリー類（予備バッテリー）
モバイルバッテリー・カメラ予備電池。
🔥
可燃性・危険物
花火・ガス缶・引火性塗料
💎
貴重品・重要書類
パソコン・現金・パスポート・ジュエリー
🥛
壊れやすい物（ガラス・瓶類）
酒・調味料などは割れると衣類も被害に。
🍖
生もの・腐敗しやすい食品
生肉・生魚、強い匂いの発酵食品
🛴
リチウム電池搭載の大型機器
電動キックボード・電動工具

※ 航空会社・到着国によって細則が異なります。チェックイン前に航空会社の規約を必ずご確認ください。

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3. Items that require special care when bringing into Japan

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When returning to or entering Japan, there are some categories of items that have stricter regulations than other countries .
In particular, when purchasing food, plants, medicine, or other large purchases ,

Please be careful as failure to declare may result in confiscation or penalties.

table of contents

1. Foods containing meat or meat extract

2. Fruits, vegetables, and plants

3. Dairy products

4. Medicines and supplements

5. Branded goods, watches, and bags

6. Pets and animals

1. Meat and meat extract-containing foods (almost all prohibited)

In Japan, it is one of the most strictly regulated items to prevent livestock diseases .

Examples of what is prohibited:

・Prosciutto, sausage, bacon

・Meat products such as beef, pork, and chicken

・Meat extract soup base, retort food

・"Souvenir meat jerky" bought overseas

Almost all animals are not allowed to be brought in unless you have an animal quarantine certificate.

Regarding souvenirs such as meat products (carrying them on as carry-on luggage, international mail, or parcel delivery)

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2. Fruits, vegetables and plants (quarantine certificate required)

The plants are strictly managed to prevent the introduction of pests and diseases .

Special attention is needed:

・Fruits (apples, oranges, mangoes, etc.)

・Raw vegetables

・Seeds, seedlings, flowers

・Plants and gardening tools with soil attached

An inspection certificate issued by the plant protection station of the exporting country is required.

"Regulations for bringing in vegetables and fruits from overseas"

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3. Dairy products (cheese, milk powder, etc.)

Regulations vary by country, and some types of items may not be allowed into the country .

Special attention:

・Milk powder (including for infants)

・Raw milk and unpasteurized cheese

・Butter (restrictions apply depending on the country)

Dairy products are judged differently depending on the country, degree of processing, and quantity, so it is important to check in advance.

"Quarantine of Dairy Products"

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4. Medicines and supplements (restrictions on quantity and ingredients)

Japan has very strict rules regarding the bringing in of medicines.

Important points to note:

・Even painkillers and cold medicines are subject to regulation depending on the ingredients (e.g., codeine).

・The recommended supply of the same medicine is 1 to 2 months.

・There are also quantity restrictions on medical equipment (blood glucose meters, etc.)

・Large quantities of supplements may be stopped at customs

Be careful, especially with Asian "strong cold medicines" and "anti-drowsiness medicines," as their ingredients may be inappropriate.

"About bringing medicines etc. into Japan"

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5. High-priced items: brand-name goods, watches, bags (taxable if exceeding the duty-free limit)

High-value items purchased overseas will be subject to customs duties if they exceed the duty-free allowance .

Basic rules:

・Duty-free limit is up to 200,000 yen in total

If it exceeds that amount, tax will be charged.

・Branded bags and watches are prone to problems due to failure to declare them.

If you want to buy things cheaply while traveling abroad, make sure you know the amount and declare it.

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6. Pets and Animals

It is subject to animal quarantine and advance procedures are required.

example:

・Pets (dogs and cats) must go through import quarantine procedures.

・Animal crafts (leather products) and taxidermy

・Pet food such as milk gum (some restrictions apply)

- Please note that leather products in particular may be prohibited depending on the animal species (CITES).

"Bringing dogs and cats from overseas into Japan"

⚠ 日本への持ち込みで特に注意が必要な物（まとめ）

🥩
肉類・肉製品
生ハム、ソーセージ、肉エキス入り食品など。
🍎
果物・野菜・植物類
証明書がない場合は原則没収。
🧀
乳製品
加工状態・国によっては持ち込み不可。
💊
医薬品・サプリ
成分・数量の規制に注意（1〜2ヶ月分目安）。
👜
高額商品（ブランド品など）
20万円を超えると課税対象。申告漏れに注意。
🐾
動物・動物製品
ペット・革製品などは検疫が必要な場合あり。
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summary

Title

The rules for checked baggage, checked baggage, and entry into Japan may seem a little complicated, but
As long as you understand what constitutes a dangerous item and how much and how much you need to declare, you won't get confused.

In this article, we will summarize some common examples of items that are often confiscated.
We have compiled a list of things you should pay attention to when packing so that you can understand them all at once.

A few minutes of preparation can help prevent problems while traveling.
To ensure you can enjoy your trip with peace of mind, check the contents of your suitcase today.

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FAQ (Frequently Asked Questions)

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Q1. 機内持ち込みで没収されやすい物は何ですか？

A1：代表例は「100mlを超える液体類」「刃物類」「工具」「ライター類」です。
特に、スプレー・化粧水・ジェル類は“見落とし率トップ”なので、必ず透明袋にまとめてください。

Q2. 受託手荷物で預けられない危険物は？

A2：リチウム電池単体、花火・ガス缶、発火性スプレー、強酸・強アルカリなどの腐食性物質は預けられません。
モバイルバッテリーは必ず手荷物に入れてください。

Q3. 日本入国時に申告が必要なものはありますか？

A3：肉製品・果物・薬・化粧品・酒・たばこなどは、量により申告が必要です。
とくに食品系は厳しく、内容によっては持ち込み禁止になる場合があります。

Q4. 没収されにくくする荷造りのコツは？

A4：液体は100ml以下にまとめる、危険物は必ず確認する、食品や薬は「申告対象かどうか」を国別にチェックするのが基本です。
不安なものは手前ポケットに入れると検査がスムーズになります。

Q5. スーツケースを開けられるのが不安です。対策はありますか？

A5：TSAロック付きのスーツケースを使う、フロントオープンで整理する、貴重品は手荷物へ分散するのが基本です。
盗難防止タグ・AirTagなどのトラッカーを入れておくと、紛失対策にもなります。

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