
Heathrow Airport, like other airports, has strict rules about what can and cannot be taken through security. Liquids, gels, and pastes must adhere to the 100ml rule and be placed in a clear, resealable plastic bag. This includes food items such as yoghurt, jam, and baby food, although baby food and breast milk are exempt from the 100ml rule. Solid foods, such as sandwiches, biscuits, and fruit, are allowed. Powders, including food powders, are allowed if purchased at duty-free and packaged in a security tamper-evident bag. Electronic devices must be charged and will need to be turned on to demonstrate that they function.
| Characteristics | Values |
|---|---|
| Liquids | Liquids in containers over 100ml are not allowed. Liquids include drinks, soups, sauces, jam, jelly, etc. |
| Exemptions | Medication and baby food/milk are exempt from the 100ml rule but may be subject to additional screening. |
| Powders | Powders purchased from duty-free are allowed if they are packaged in a security tamper-evident bag with a receipt inside. |
| Electronic devices | All electronic devices must be charged. If they don't switch on, they may not be allowed on the aircraft. |
| Screening | All cabin baggage will be X-ray screened. |
| Solid food | Solid food is allowed, including sandwiches, biscuits, fruit, nuts, etc. |
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What You'll Learn

Liquids, gels and pastes must be under 100ml
Liquids, gels, and pastes in hand luggage must adhere to the 100ml rule at Heathrow Airport. This means that each container carrying liquids, gels, or pastes must not exceed 100ml. All such liquids must be placed in a single, transparent, resealable plastic bag, no bigger than 1 litre in capacity. The maximum dimensions of the bag are 20cm by 20cm, and you must be able to seal the bag. Heathrow Airport allows one liquid bag per person.
Liquid medicines are exempt from the 100ml rule, but only if you need them during the flight. You must also provide documentary proof of authenticity, such as a prescription or a letter from a medical practitioner. Medications will be subject to additional screening.
Baby food and milk are also exempt from the 100ml rule. If you are travelling with an infant, you are allowed to carry as much infant milk, baby food, powdered milk formula, and sterilised water as required for your trip, even if this exceeds the usual limit on liquids. These items do not need to be placed in the transparent bag for liquids, but you should have them ready for inspection by airport security.
Food items in hand luggage can obstruct images on X-ray machines. Your bags may need to be checked again manually by security. It is always best to check with airport security if you are unsure about any food items in your hand luggage.
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Solid foods are allowed
Additionally, pasted foods like peanut butter or hummus are not permitted in hand luggage. Heathrow's security equipment is currently being upgraded, so passengers should prepare for security as normal until the new scanning and detection technology is fully implemented.
If you are travelling with an infant, you are allowed to carry as much baby food, milk, powdered milk formula, and sterilised water as required for your trip, even if it exceeds the usual liquid limit. These items do not need to be placed in a transparent bag when going through security checkpoints, but they should be readily available for inspection.
Furthermore, medications and baby food/milk are exempt from the 100ml rule but may be subject to additional screening. It is recommended to carry documentary proof of authenticity, such as a prescription or a letter from a medical practitioner, for any medications you need during your journey.
It is always advisable to check with airport security if you are unsure about any food items in your hand luggage.
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Baby food/milk is exempt from the 100ml rule
Heathrow Airport has a 100ml restriction on liquids, gels, pastes, and aerosols. However, baby food and milk are exempt from this rule. Parents can bring up to 2 litres of expressed breast milk and prepared baby milk through security. This milk must be in liquid form and not frozen, and it should be stored in a clear, transparent container or bag. This exemption only applies when travelling with an infant; otherwise, only breast milk can be carried in quantities greater than 100ml.
If you would prefer not to bring baby food or milk through security, Heathrow offers a Reserve and Collect service that allows you to reserve these items and pick them up after passing through security. Additionally, there are shops airside where snacks for babies and toddlers can be purchased.
Heathrow also provides various family-friendly facilities and services to assist passengers travelling with children. For example, the airport offers a Meet and Assist service to help with check-in, immigration, and bags. This service can also help speed up security checks and provide a cart to transport you from the plane to immigration upon landing. Another option is the Porter Service, which can assist with carrying bags and strollers.
To make the journey more enjoyable for children, Heathrow has free Mr Adventure Stay & Play areas with slides, soft play areas, and separate baby and junior zones. There are also baby change areas in each terminal, located before and after security control.
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Food in hand luggage can obstruct X-ray images
Passengers travelling through Heathrow Airport are allowed to carry food in their hand luggage. However, there are certain restrictions and guidelines that must be followed to ensure a smooth security screening process.
Firstly, it is essential to distinguish between solid and liquid foods. Solid foods, such as sandwiches, biscuits, fruits, and nuts, are generally permitted in hand luggage without any restrictions. These items can be packed and carried without concern for X-ray obstruction.
On the other hand, liquid foods, such as drinks, soups, sauces, jams, and jellies, are subject to the same restrictions as other liquids. These items must adhere to the 100ml rule, meaning they must be in containers no larger than 100ml and placed in a transparent, resealable plastic bag with a maximum capacity of 1 litre. This bag should be removed from your hand luggage and placed separately in a tray for screening.
Additionally, it is important to note that pasted foods, such as peanut butter or hummus, are prohibited in hand luggage. These items can cause significant obstruction in X-ray images, leading to delays in the security screening process.
To ensure a seamless security experience at Heathrow Airport, passengers should carefully consider the types of food they pack in their hand luggage. Solid foods are generally permitted, while liquid and gel foods must follow the 100ml rule. By following these guidelines, passengers can minimise the risk of obstructing X-ray images and enjoy a hassle-free journey through airport security.
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Duty-free food must be in a security tamper evident bag
Heathrow Airport has strict rules about what can and cannot be taken through airport security. Liquids, gels, and powders are allowed, but they must be in containers no larger than 100ml and placed inside a 1-litre clear plastic bag. Food items are also allowed, but Heathrow recommends that you pack them into your hold baggage if possible, as they can obstruct images on the X-ray machine.
If you are purchasing duty-free food at Heathrow Airport, it must be placed in a security tamper-evident bag (STEB). This is a special bag that has security features to prevent tampering. The receipt for the food must be placed inside the STEB, along with the food item(s). This allows security officers to easily identify that the item has been purchased at an airport after security.
Liquids, aerosols, and gels purchased from duty-free must also be placed in a STEB, and they must be sealed at the time of purchase. Liquid medicines and special dietary products, such as baby food, are exempt from this rule, but may still require additional checks. If you are carrying liquid medicines, you must provide a prescription or a letter from a medical practitioner.
Powders purchased from duty-free must also be placed in a STEB and are subject to additional checks. If you are travelling to the US, you are prohibited from carrying powders over 350ml or 350g in the cabin. Medical powders, baby powders, and human ashes are still permitted but will be subject to further security screening.
It is important to note that these rules may vary depending on your destination and the regulations of the airport you are travelling through. Always check with the relevant airport and airline before your travel to ensure you are compliant with their specific regulations.
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Frequently asked questions
Yes, you can take food through airport security at Heathrow, but there are some restrictions. Liquids or gels in your food must adhere to the 100ml rule and be placed in a clear, resealable plastic bag. Regular solid food can be in your luggage, such as sandwiches, biscuits, fruit, and nuts.
Baby food and milk are exempt from the 100ml rule, but may be subject to additional screening. You can carry as much infant milk, baby food, powdered milk formula, and sterilised water as required for your trip.
Yes, you can take food in your hand luggage, but food items and powders can obstruct images on X-ray machines, so your bag may need to be checked manually by security.
Yes, but they must be packaged in a security tamper-evident bag with a receipt inside proving purchase.
Yes, but they must be charged and switched on before you arrive at the airport. If they do not switch on, you may not be allowed to take them on the aircraft.











































