Why did the TSA ban peanut butter?

The Transportation Safety Administration sparked a debate about the viscosity of peanut butter this month when they called it a liquid. Because the TSA considers the nut spread a liquid, plane passengers must limit the amount they bring in their carry-ons.



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Because the TSA considers the nut spread a liquid, plane passengers must limit the amount they bring in their carry-ons. Like all other liquids, passengers are limited to 3.4 oz or less of peanut butter in their carry-on bag, but can also put the snack in their checked baggage.

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Solid foods, including peanut butter and jelly sandwiches, are allowed in carry-on bags with no quantity limitations or packing requirements.

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Yes, you may pack food in your carry-on or checked bag, but remember all food must undergo x-ray screening. Foods that are liquids, gels, or aerosols must comply with the 3-1-1 liquids rule. TSA officers make the final decision on whether certain items are permitted into the secured areas of the airport.

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Because the TSA considers the nut spread a liquid, plane passengers must limit the amount they bring in their carry-ons. Like all other liquids, passengers are limited to 3.4 oz or less of peanut butter in their carry-on bag, but can also put the snack in their checked baggage.

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Jar of peanut butter
Peanut butter may seem like a safe item since it's food, but the TSA considers it a liquid, so you're restricted to anything less than 3.4oz/100 ml allowed. You can still bring in jars, but it'll have to be less than the allowed limit.

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United is committed to the safety of its customers, including customers with major food allergies. United does not serve pre-packaged peanuts on our flights.

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Foods considered liquids and gels, including nut butters, hummus and soft cheeses, must comply with TSA regulations. That means that no individual liquid food item can be over 3.4 ounces. All of your liquid and gels, including foods and toiletries, need to fit in a single quart-sized bag.

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But TSA replied that there is no new policy governing food, and the request is simply to reduce clutter in bags for X-ray screening. “This is an opportunity for them to clarify the rules,” said Sree Sreenivasan, a social-media consultant.

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While you are allowed to bring food and other organic matter through security in US airports, it is likely to be examined by security officers. Most scanning machines can detect biological material (think fruits and vegetables) pretty clearly.

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