TSA rules peanut butter is not a solid — it's a liquid The TSA says peanut butter is a liquid because its shape is dictated by its container. To pass through security, peanut butter in a carry-on needs to be 3.4 oz. or less.
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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.
Pack items that are in containers larger than 3.4 ounces or 100 milliliters in checked baggage. Any liquid, aerosol, gel, cream or paste that alarms during screening will require additional screening.
The TSA has finally shared their reasoning behind declaring peanut butter a liquid. The Transportation Security Administration has spoken: You can't bring your jar of peanut butter through airport security. Why? Because, according to them, it's a liquid, not a solid.
Each passenger is limited to one quart-size bag of liquids, gels and aerosols. Common travel items that must comply with the 3-1-1 liquids rule include toothpaste, shampoo, conditioner, mouthwash and lotion.
So, the verdict on peanut butter: delicious liquid. If you plan to make a PB&J sandwich mid-flight, count on bringing 3.4 ounces of liquid peanut butter or less. And the same goes for its liquid cousin, jelly.
Jar of peanut butterYou can still bring in jars, but it'll have to be less than the allowed limit. You're better off scooping some peanut butter into a small container instead of bringing a full jar onboard.
Jar of peanut butterPeanut 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.
The TSA's liquid limit for carry-ons—known as the 3-1-1 rule—allows travelers to pack liquids, aerosols, gels, creams, and pastes under 3.4 ounces (100 milliliters) in their carry-on bags. Passengers are allowed up to one quart-sized bag per person, or roughly nine 3.4-ounce containers in a single quart-sized bag.
Is Mascara Considered a Liquid by TSA? TSA counts mascara as a liquid, so the 3-1-1 rule for packing it in hand luggage applies. It states that all liquids have to be in 3.4 oz (100 ml) bottles or smaller and packed in a 1-quart bag. Mascara usually isn't above 3.4 oz, so you're free to pack it in your hand luggage.
The Bottom Line. Chapstick, lipstick, and solid lip balms are not considered liquids by the TSA and can be thrown into your handbag or carry-on without any issues. Liquid lip gloss, jars of petroleum lip balm, and other lip care liquids must be placed in your clear liquids bag for security checkpoint screening.