Airports: love them or loathe them, they’re the unavoidable gateway to adventure. For many of us, the most nerve-wracking part of any trip isn’t the flight itself, but navigating the labyrinth of airport security. Even the most seasoned travellers can find themselves sweating bullets as they approach the scanners, hoping they haven’t accidentally packed something that will set off alarms.
But did you know that some of the most innocent, everyday items could land you in hot water with airport security?
Here’s a comprehensive guide to the surprising things that could get you flagged—and what you can do to breeze through security with your dignity (and your snacks) intact.
Hand Soap: The Surprising Culprit
You’d think washing your hands before a flight would be a good thing, right? Well, it turns out that certain hand soaps and lotions can cause more trouble than you’d expect.
A US-based travel writer recently found herself detained and missing her flight after testing positive for gunpowder residue at security. The culprit? Her hand soap.
Many hand soaps and lotions contain glycerin, a compound that shares nitrogen-based chemicals with explosives like gunpowder and dynamite. When airport staff swab your hands or bags for explosive traces, the machines can sometimes mistake glycerin for something far more sinister.
While the TSA (and Australian authorities) say this is rare, it’s not unheard of. So, if you’re heading through security, maybe skip the fancy hand wash until you’re safely on the other side.
Underwire Bras: A Hidden Hazard
Ladies, we know comfort is key when flying, but did you know your underwire bra could set off the metal detectors? While most modern detectors are designed to ignore small amounts of metal, sometimes the underwire is enough to trigger an alarm, leading to an awkward pat-down.
If you want to breeze through security, consider opting for a wire-free bra on travel days. Not only will you avoid extra scrutiny, but you’ll also be much more comfortable during your flight—especially on those long-haul journeys.
Sweat: Yes, Really!
Here’s one for the books: being a bit sweaty can actually trigger airport scanners. The millimetre wave technology used in most airports is designed to bounce off your skin and map your body’s silhouette. But sweat, being highly reflective, can confuse the scanner, making it think you’ve got something hidden under your clothes.
If you’re feeling a bit clammy (and who isn’t after lugging bags through a crowded terminal?), take a quick bathroom break and pat yourself down with a paper towel before heading through security. It might just save you from an awkward extra screening.
Cheese and Coffee: The Gourmet Red Flags
Bringing home a taste of your travels? Dense organic items like cheese and ground coffee can look suspicious on X-ray scanners. Security staff may want to take a closer look, especially if you’re carrying a hefty block of Tasty or a bag of your favourite beans.
And here’s a quirky rule: soft cheeses are considered a gel under aviation regulations. If you’re carrying more than 100 grams, it needs to go in your checked baggage. So, if you’re planning a cheese platter at your destination, pack accordingly!
Rocks: Souvenirs with Strings Attached
It might be tempting to pocket a unique rock as a memento from your travels, but rocks can also trigger a manual search at security. They show up as dense, irregular objects on the scanner, which can look suspicious.
And if you’re bringing rocks back into Australia, remember our strict biosecurity laws: all rocks must be declared and thoroughly cleaned to remove soil, sand, and plant material. Otherwise, you could face hefty fines or have your souvenir confiscated.
Sex Toys: Handle with Care (and Discretion)
We’re all adults here, but sex toys can still cause a stir at airport security. Dense, oddly shaped objects often get flagged for inspection, so if you’re travelling with them, keep them accessible and be prepared for a quick explanation.
Remove batteries to avoid any embarrassing buzzing, and always check the import laws of your destination—some countries, like Fiji, have strict rules about what’s considered ‘obscene’ and may confiscate your items.
Electronics and Batteries: The Power Problem
While not as surprising, it’s worth mentioning that electronics with batteries can also cause issues.
Always remove batteries where possible and keep devices easily accessible for inspection. This helps prevent accidental activation and speeds up the screening process.
Key Takeaways
- Certain hand soaps containing glycerin can cause false positive gunpowder tests at airport security, so it’s best to avoid using them right before going through screening.
- Being sweaty in areas like your underarms or crotch can trigger airport scanners, so a quick pat down with a paper towel before security might help you avoid extra checks.
- Items like cheese, coffee, and rocks can look suspicious in scanners, potentially leading to bag searches; plus, soft cheese counts as a gel and rocks must be declared due to Australia’s biosecurity rules.
- Underwire bras and sex toys may set off detectors or appear as suspicious objects on X-ray, so wire-free bras and keeping personal items easily accessible can make the security process smoother.
We’d love to hear your stories! Have you ever been stopped at airport security for something completely innocent? Did your favourite soap, snack, or souvenir cause a stir? Share your experiences in the comments below—your tale might just help a fellow traveller avoid a similar fate.
