The popular food item banned from airport security even though it's not a liquid

The price of food at airports is increasing, with shops charging up to 48 percent more for snacks and drinks at airports and railway stations than on the high street, according to new research by The Mirror. Many airlines also charge passengers for onboard meals, such as British Airways who replaced their complimentary dining on short-haul routes with a paid menu.

As a result, it's no surprise that more travellers are bringing their own snacks to the airport. However, there are some common food items which could lead to you being stopped and searched at security, and even losing your snacks.

While changes are being implemented at select airports across the UK, liquid rules remain in place at many flight hubs both domestically and internationally, reports the Express.

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At the time of writing, the UK Government website states: "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 know water and drinks are included in the liquid ban, there are some foods you may not realise fall into the liquid category. One major culprit is hummus.

The Middle Eastern dip made from chickpeas and tahini may be more of a paste than a liquid, but it can still be confiscated from travellers at security. Other dips such as guacamole or salsa are also subject to the same regulations.

A travel expert from Ski Vertigo commented: "Certain food items, especially those that are liquid or