
The Transportation Security Administration (TSA) has sparked controversy by classifying peanut butter as a liquid, which means that travellers are limited to carrying 3.4 oz or less in their carry-on luggage. This decision has sparked a debate about the viscosity of peanut butter, with some arguing that it does not conform to the definition of a liquid as a substance that has no definite shape and takes the shape dictated by its container. Despite the controversy, the TSA's ruling stands, and travellers wishing to bring peanut butter on a plane must ensure their jars are within the permitted limit or risk having their nutty treat confiscated.
| Characteristics | Values |
|---|---|
| Can you take peanut butter through airport security? | Yes, but only if it's in a sandwich or less than or equal to 3.4 oz/100 ml. |
| Is peanut butter considered a liquid? | Yes, according to the TSA. |
| Can you take peanut butter sandwiches through airport security? | Yes, solid foods, including peanut butter and jelly sandwiches, are allowed in carry-on bags with no quantity limitations or packing requirements. |
| Can you take peanut butter in checked baggage? | Yes |
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What You'll Learn

Peanut butter sandwiches are allowed
There has been much debate about whether peanut butter is considered a liquid or a solid by the Transportation Security Administration (TSA). The TSA defines a liquid as a substance that "has no definite shape and takes the shape dictated by its container." As peanut butter fits this description, the TSA has officially ruled that it is a liquid. This means that any containers of peanut butter must be under 3.4 ounces to be brought onto a plane in carry-on luggage.
However, solid foods containing peanut butter, such as sandwiches, are allowed in carry-on bags with no quantity limitations or packing requirements. So, if you're hoping to enjoy a peanut butter sandwich during your flight, you're in luck! You can pack a peanut butter sandwich in your carry-on bag without worrying about restrictions.
It's important to note that TSA officers may instruct travelers to separate items like foods and powders from their carry-on bags to ease the screening process and keep the lines moving. So, while peanut butter sandwiches are allowed, it's a good idea to have them easily accessible for inspection if needed.
Additionally, while plastic knives and forks are permitted in carry-on bags, you may prefer to stick to meals that only require a plastic spoon or your hands to avoid any potential issues. So, feel free to pack that peanut butter sandwich, but consider bringing a spoon or planning to enjoy it with your hands to avoid any delays or complications.
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Jars of peanut butter are not allowed
The official definition of a liquid, according to the TSA, is "a substance that has no definite shape and takes the shape dictated by its container." While some may disagree with this classification of peanut butter, the TSA has upheld its decision. As a result, travellers are advised to limit the amount of peanut butter they bring in their carry-on luggage to small, travel-sized containers of 3.4 ounces or less.
It is important to note that solid foods, including peanut butter and jelly sandwiches, are allowed in carry-on bags without quantity limitations. This means that travellers can still enjoy their favourite peanut butter snacks on the plane, as long as they are not in the form of a jar or container exceeding the specified limit.
While jars of peanut butter are not permitted in carry-on luggage, travellers have the option to pack them in their checked baggage. This allows travellers to bring larger quantities of peanut butter on their trip without having to worry about complying with the liquid restrictions for carry-on items. It is advisable to pack these jars securely and separately from other items to facilitate a smooth screening process and avoid any potential clutter that may obstruct clear images on the X-ray machine.
Although it may be disappointing for peanut butter enthusiasts, it is crucial to abide by the TSA's regulations to ensure a safe and efficient security screening process for all travellers. By following these guidelines, travellers can avoid any unpleasant surprises at the airport and focus on enjoying their journey.
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Peanut butter is considered a liquid
The Transportation Security Administration (TSA) has classified peanut butter as a liquid, which sparked controversy. According to the TSA, a liquid is defined as a substance that "has no definite shape and takes the shape dictated by its container." This definition sparked debates about the viscosity of peanut butter. Many people disagree with the classification, with some pointing out that peanut butter cannot be drunk.
Due to this classification, travellers are limited to carrying on 3.4 oz or less (approximately 100 ml) of peanut butter in their carry-on luggage. This rule applies to all liquid or gel-like foods, including creamy dips and spreads such as cheese and peanut butter. Passengers can also place larger amounts of peanut butter in their checked baggage.
To comply with the TSA's rules, travellers may opt to bring solid foods, including peanut butter and jelly sandwiches, in their carry-on bags. Solid foods are allowed with no quantity limitations or packing requirements. It is important to note that TSA officers may instruct travellers to separate items from their carry-on bags, such as foods, powders, and other materials that can clutter bags and obstruct clear images on the X-ray machine.
Travellers are encouraged to organise their carry-on bags and keep them uncluttered to facilitate a smooth screening process. Ultimately, the final decision on whether an item is allowed through the security checkpoint rests with the TSA officer.
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The liquid rule: 3.4 oz or less
The Transportation Security Administration (TSA) has classified peanut butter as a liquid, which means it is subject to the 3.4 oz or 100 ml restriction for carry-on luggage. This decision sparked a debate about the viscosity of peanut butter, with many disagreeing with the classification. However, according to the TSA, a liquid is defined as a substance that "has no definite shape and takes the shape dictated by its container," which is how they view peanut butter.
As a result of this classification, travellers are limited to bringing 3.4 oz or less of peanut butter in their carry-on bags. This amount must also fit within a single quart-size bag, along with any other liquid or gel-like foods. Passengers can, however, bring larger containers of peanut butter in their checked baggage without restriction.
It is important to note that solid foods, including peanut butter and jelly sandwiches, are allowed in carry-on bags without quantity limitations. So, if you're looking to bring peanut butter on your flight, consider making a sandwich or purchasing single-serve packets that adhere to the liquid restrictions.
While the TSA's classification of peanut butter as a liquid may seem unusual, it is important to abide by their rules and regulations to ensure a smooth screening process. Travellers are encouraged to organise their carry-on bags and keep them uncluttered to ease the screening process and keep the lines moving. Ultimately, the final decision on whether an item is allowed through the checkpoint rests with the TSA officer.
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Peanut butter in checked baggage
The Transportation Security Administration (TSA) has classified peanut butter as a liquid. This means that if you want to take peanut butter through airport security in your carry-on luggage, you are limited to containers of 3.4 oz (100 ml) or less. This rule also applies to other liquids such as olive oil and salsa.
However, if you are travelling with peanut butter in checked baggage, there are no quantity limitations. You are free to pack as much peanut butter as you like in your checked luggage.
It is important to note that TSA officers may instruct travellers to separate items from their carry-on bags, such as foods, powders, and any materials that can clutter bags and obstruct clear images on the X-ray machine. So, while you can pack peanut butter in your checked baggage without quantity restrictions, it is advisable to keep your checked baggage organised and uncluttered to ease the screening process.
The final decision on whether an item is allowed through the checkpoint rests with the TSA officer.
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Frequently asked questions
No. The TSA considers peanut butter a liquid, so you are only allowed containers that are 3.4 ounces or less in your carry-on luggage.
Yes. Solid foods, including peanut butter and jelly sandwiches, are allowed in carry-on bags with no quantity limitations or packing requirements.
Yes. There are no restrictions on the amount of peanut butter you can bring in your checked luggage.
The TSA defines a liquid as a substance that "has no definite shape and takes the shape dictated by its container." Peanut butter fits this description.





































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