The cost of food at airports is soaring; according to recent study by The Mirror, shops there can charge up to 48% more for snacks and drinks than they do on the high street. Many airlines also charge passengers for meals during flights, such as British Airways, which discontinued its free onboard dining program in favor of a paid menu on short-haul routes.

It's not surprising, considering these conditions, that more and more travelers are choosing to pack their own snacks for the airport. But, if you bring certain typical foods with you, you can be stopped by security, searched, and even have your snacks seized.

According to the Express, liquid restrictions are still in effect at numerous domestic and international aircraft hubs, despite adjustments being implemented by certain airports in the UK.

As per the UK Government website at the time of writing: "If you do take liquids in your hand luggage containers must hold no more than 100ml.Containers must be in a single, transparent, resealable plastic bag, which holds no more than a litre and measures approximately 20cm x 20cm and contents must fit comfortably inside the bag so it can be sealed."

While most people are aware that water and other drinks fall under the liquid ban, there are some foods that you might not realise are classified as liquids. Hummus is one such culprit.

This Middle Eastern dip made from chickpeas and tahini may resemble a paste more than a liquid, but it can still be confiscated from travellers at security.

Holidaymakers are being reminded about the strict rules on taking certain food items through security, with popular dips like guacamole and salsa falling under the same restrictions.

A Ski Vertigo travel expert warned: "Certain food items, especially those that are liquid or gel-like, such as peanut butter, jam, or yoghurt, are subject to the liquids rule."

"Solid foods generally pass through security without issues, but any food that can be spread, squirted, or poured may be confiscated if it exceeds the allowed liquid limits. Food items can also trigger additional screening if they appear suspicious on the X-ray."

Despite some UK airports adopting cutting-edge CT scanners that could potentially do away with the need for current liquid restrictions, the changeover has been patchy, with many airports lagging behind. It's important to note that even if your UK airport has the new scanners, international destinations might still enforce traditional liquid rules.

The Department of Transport spokesperson advised: "Passengers should continue to check security requirements with their departure airport before travelling."

So, for now, it's best for travellers to stick to the existing liquid guidelines until further notice, with no definitive timeline for when all liquid restrictions might be lifted.