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After the Great TSA Peanut Butter Debacle of 2023, many travelers were left wondering what other seemingly innocuous items they might have to toss when they put their carry-ons through airport security. The No-Go List isn’t just obvious items regulated by the 3-1-1 rule, like water and juice boxes; it also includes a variety of foods with questionable consistency and items that have nothing to do with food at all. Plus cats. And boa constrictors.
When you’re packing, remember to limit anything liquid-y to 3.4 ounces (100 milliliters) or less and to place those items in a clear, quart-sized plastic bag, one bag per traveler. Think the usuals, like shampoo, toothpaste, and aerosol or roll-on liquid deodorant (solid deodorant isn’t regulated by the 3-1-1 rule).
But here are some surprising items that the TSA prohibits in carry-on luggage.
Peanut butter
The TSA has spoken: In March, the airport-security agency nearly broke the internet when it declared that it considers peanut butter to be a liquid and therefore subject to the 3.4-ounce limit for carry-on bags. Its reasoning: “A liquid has no definite shape and takes a shape dictated by its container.”
As disappointed as PB fans were by this news, the puns have been almost enough to make up for it. Almost. As the TSA’s awesome Instagram reminded travelers recently: “Caught in a jam with more travel questions? Don’t skippy past our friends at AskTSA! You can now get your answers in a jiff through SMS. Simply text “TRAVEL” to AskTSA (275-872), the replies are smooth and never crunchy.”
Frosting
The fate of frosting is similar to that of its cousin peanut butter, and its doom was decided in Cupcakegate 2012, when a TSA agent in Las Vegas nixed a traveler’s cupcake-in-a-jar. In a blog post complete with a photo comparison of a regular cupcake and a jar version, the TSA backed the agent’s call, arguing that frosting was a gel and therefore fell under the 3.4-ounce rule.
“Unlike a thin layer of icing that resides on the top of most cupcakes, this cupcake had a thick layer of icing inside a jar.” Disbelief ran rampant, and food scientists and chefs commented. In an argument for frosting’s freedom, Alton Brown explained to me at the time that “By definition, icing is not a gel. We get that word from gelatin, which implies coagulated proteins, so [frosting] is not. Technically frosting is a condensed syrup.”
Regardless, TSA has not budged, and in a Scrooge move during the 2022 Christmas season, it reiterated the ban with a Tweet: “Oh snap! Traveling with your gingerbread kit? Solid foods and candy are good to go. If it’s frosting or icing not already on the house, it must follow our liquids rule in carry-on. Items need to be 3.4 oz. or less.” Points for more puns, I guess.
Freezer packs that aren’t frozen
If the freezer packs or bags of ice are solid, you’re good to go. But once that pack is melted or even partially slushy, it’s considered a liquid and is subject to the 3-1-1 rule. So if you’re, say, my mom, and you’re loading ice packs into a cooler of chopped liver to bring to your family for Rosh Hashanah dinner, make sure those packs are good and solid. No word on the chopped liver itself though.
Alcohol over 140 proof
Even if it’s decanted into tiny bottles, any booze over 140 proof (that’s 70 percent alcohol) is banned from carry-on bags. But we have to admit, skipping the Everclear and high-octane Puerto Rican rum on a flight seems like a smart move for a variety of reasons.
Some sports equipment
You can bring your lucky baseball, basketball, or soccer ball into the cabin—even bike chains and bike pumps are allowed. But the TSA draws the line at any sports equipment “that can be used as a bludgeon (such as bats and clubs).” So you’ll have to check golf clubs and baseball bats.
Wet pet food
If it’s too liquid-y, you’re likely to lose your pet’s lunch . . . to the TSA. So bring dry food and snacks if you’re flying with an animal, even if the food is prescription. Need we remind you to travel with pets appropriately, and to review all requirements and forms for service and emotional support animals? Cats love suitcases, so make sure yours didn’t climb inside before heading to the airport. This guy forgot.
Ammunition
Some people will find this an obvious prohibition, but many (many) many people still bring ammunition in their carry-ons. Or worse, actual guns (occasionally even hidden in peanut butter). While some firearms may be allowed in checked luggage (albeit with lots of rules), they are not allowed in the cabin—not even toys, cap guns, or historical replicas. And in case you were wondering, nunchuks, throwing stars (not even Batman’s variety), pocket knives, and saw blades are all prohibited too.
Billie Cohen is executive editor of AFAR. She covers all areas of travel, and has soft spots for nerd travel, maps, intel, history, architecture, art, design, people, dessert, street art, and Oreo flavors around the world. Follow her @billietravels.
Greetings, enthusiasts of air travel and airport security protocols. As someone deeply immersed in the intricacies of travel regulations, I must address the aftermath of the Great TSA Peanut Butter Debacle of 2023. I am well-versed in the labyrinth of security measures and restrictions imposed on seemingly innocent items that may confound even the most seasoned travelers.
The TSA's determination that peanut butter is a liquid and, therefore, subject to the 3.4-ounce limit for carry-on bags caused quite a stir. The agency argued that liquids have no definite shape and take the form dictated by their containers. This decision, though disappointing to peanut butter aficionados, sparked a flurry of puns and humorous responses on the TSA's Instagram account.
Moving beyond peanut butter, let's delve into Cupcakegate 2012, where frosting met a fate similar to its gooey cousin. In a controversial move, a TSA agent in Las Vegas deemed a cupcake-in-a-jar a security risk due to the thickness of its frosting, categorizing it as a gel and enforcing the 3.4-ounce rule. Despite arguments from food scientists and chefs like Alton Brown asserting that frosting is not a gel, the TSA remained steadfast in its decision.
Now, let's address another item on the No-Go List: freezer packs that aren't frozen. Once a solid pack becomes melted or partially slushy, it is considered a liquid and falls under the 3-1-1 rule. This has implications for individuals, such as my mom, who might transport ice packs for perishables like chopped liver to family gatherings.
For those inclined to bring high-proof spirits on board, be cautious. Alcohol over 140 proof (70 percent alcohol) is banned from carry-on bags, even when decanted into tiny bottles. The TSA's rationale for this restriction seems sensible for various reasons.
Moving away from culinary concerns, sports equipment is generally allowed in the cabin, but the TSA draws the line at items that could be used as bludgeons, such as bats and clubs. Golf clubs and baseball bats, in particular, must be checked rather than carried on.
Pet owners, take heed. Wet pet food is subject to TSA regulations, and if it's too liquidy, it may be confiscated. Opt for dry food and snacks when traveling with your furry companions.
Lastly, ammunition and firearms are strictly prohibited in carry-on bags. While some firearms may be permitted in checked luggage with specific guidelines, the cabin is a no-go zone. Additionally, various items, including nunchuks, throwing stars, pocket knives, and saw blades, are on the TSA's list of prohibited items.
In conclusion, as you embark on your air travel adventures, remember to navigate the TSA's ever-evolving rules with caution, ensuring a smooth journey through security checkpoints. Safe travels, fellow aficionados of the aviation realm.
