How much liquid to carry on a plane: analysis of the latest regulations and hot topics
As air travel becomes more popular, passengers are becoming increasingly concerned about the rules for carrying liquids on board planes. Recently, there has been a heated discussion on the entire Internet around the topic of "how much liquid to carry on an airplane." This article will combine the hot topics and hot content in the past 10 days to explain the relevant regulations in detail and provide structured data to help you better plan your trip.
1. Basic regulations for carrying liquids on aircraft

According to the regulations of the International Civil Aviation Organization (ICAO) and national aviation authorities, passengers carrying liquids in carry-on baggage must comply with the following principles:
| project | Regulation |
|---|---|
| Single bottle capacity | Not to exceed 100 ml (3.4 oz) |
| total capacity | All liquid containers must be placed in a clear, sealable plastic bag with a total capacity of no more than 1 liter |
| Security requirements | Plastic bags need to be taken out separately for inspection by security personnel |
It is important to note that these regulations mainly apply to carry-on baggage. Liquid restrictions in checked baggage are relatively loose, but some special liquids (such as alcohol, flammable liquids, etc.) are still strictly controlled.
2. Recent hot topics and controversies
1.Carrying cosmetics and medicines: Recently, some passengers have reported that some airports have different inspection standards for cosmetics and medicines. In particular, whether liquid medicines require a doctor’s certificate has become a focus of discussion.
2.Baby food and breast milk: Many parents are confused about the rules for bringing baby food, breast milk and formula. Under the latest regulations, these items are generally exempt from the 100ml limit but need to be declared in advance and subject to additional inspections.
3.Carrying duty-free goods: Some passengers encountered problems during transfer after purchasing duty-free liquid products overseas. Many recent cases have shown that different countries and regions have different transit regulations for duty-free liquids.
3. Comparison of liquid carrying regulations of airlines in various countries
Here is a recent comparison of liquid carry-on regulations on popular airlines:
| airline | liquid regulations | Special instructions |
|---|---|---|
| Air China | Follow ICAO standards | Moderate amounts of baby food are allowed |
| American Airlines | Follow TSA standards | Drugs need to be clearly labeled |
| Emirates Airlines | Follow ICAO standards | Liquids for religious rituals are allowed |
| singapore airlines | Follow ICAO standards | Duty-free goods in transit must be sealed |
4. Frequently Asked Questions for Passengers
1.Q: How many 100ml bottles of liquid can I bring?
A: As long as all containers fit into a 1-liter clear plastic bag, which usually holds about 10 100ml containers.
2.Q: Are solid cosmetics (such as lipstick and powder) restricted?
Answer: Solid cosmetics are generally not subject to liquid restrictions, but some airports may have additional inspections for paste items.
3.Q: How to carry special medical liquids?
Answer: You need to declare to the airline in advance and provide a doctor's certificate or prescription. You may be asked to check separately.
5. Expert advice and travel tips
1. Know the liquid carrying regulations at your destination and transit points in advance, especially when traveling cross-border.
2. Put liquid items in checked luggage as much as possible to reduce the amount of liquids you carry with you.
3. Prepare relevant certification documents for special liquids (such as medicines and baby food) to avoid problems during security inspection.
4. When purchasing duty-free liquid goods, confirm the relevant regulations of the transit place and ask the merchant to provide special sealed packaging if necessary.
As aviation safety regulations are constantly updated, passengers should pay attention to the latest policy changes in a timely manner. Recently, aviation authorities in many countries have stated that liquid carrying regulations may be adjusted in the future to balance safety and convenience. It is recommended to obtain the latest information from the airline's official website or airport customer service before traveling.
Through the above structured data and hotspot analysis, I hope it can help you better understand the topic of "how much liquid to carry on an airplane" and ensure that your journey is smooth and worry-free. Remember, planning ahead and knowing the regulations are key to avoiding hassles on your trip!
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