Peanut Butter
Peanut butter is treated as a liquid/gel — 3.4 oz or less in carry-on, unlimited in checked bags.
Carry-on
Allowed with conditions
Checked
Allowed
Carry-on details
Allowed with conditions. TSA treats peanut butter as a spreadable, gel-like food — in carry-on, each container must be 3.4 oz (100 mL) or less and fit in your liquids bag, the same as any other liquid.
Checked-bag details
Allowed. No size restriction in checked baggage.
Quantity limit
3.4 oz (per container)
Related rules
FAQ
- Why is peanut butter treated like a liquid?
- TSA classifies spreadable or pourable foods — including peanut butter, jam, and syrup — as liquids/gels under the 3-1-1 rule because they can't easily be distinguished from other gels during X-ray screening.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-07-29
Final decision rests with the security officer at the checkpoint.