TSA’s Liquid Rule Applies to Peanut Butter: What Travelers Need to Know

Travelers should be aware of packing rules when preparing for a flight. The Transportation Security Administration (TSA) has issued a reminder about its liquids rule, specifically regarding peanut butter.

According to TSA guidelines, peanut butter is classified as a liquid item. This announcement was made via a recent post on X by the agency. The post confirmed, Peanut butter is a liquid… we said what we said… this time with receipts.

The TSA included a screenshot from Google AI Overview, clarifying why peanut butter is considered a liquid. Under TSA regulations, liquids, gels, and aerosols in carry-on bags must not exceed containers of 3.4 ounces and should fit inside a quart-sized bag.

For those who need larger quantities, packing these in checked luggage is allowed. Gary Leff, a travel industry expert from Texas and author of the blog View From the Wing, explained that peanut butter’s consistency categorizes it under the liquids rule. Leff stated, You can’t bring peanut butter, [as] the TSA considers that to be a liquid because it conforms to the shape of its container rather than retaining its shape on its own.

Leff emphasized that travelers can still bring food through security. He suggested alternatives like eating before arrival at the airport or packing foods compliant with TSA rules, as airport dining can be costly and limited in options. Wherever you go that’s not the airport is going to have better food at the same price, he noted.

The TSA’s decision has sparked online discussions among travelers, with some questioning the classification of peanut butter as a liquid. Comments ranged from light-hearted challenges to suggestions, such as creating sandwiches beforehand.

Previously, TSA mentioned another topic that generated debate: the practicality of bringing hammocks to airports during long layovers. While some argued that hammocks might be disruptive in crowded terminals, others found them to be a useful option for comfort during extended waits.