People use social media for travel advice. They look at TikTok for flight and holiday tips. But some advice might not be good.

Be careful with online tips. They might not come from experts. A video about airport security has been watched by many people.

In the video, a woman shows how she takes a frozen smoothie through security.

People commented on the video. They were surprised and warned that the smoothie is still a liquid.

Some items in your hand luggage can lead to a fine.

Travel experts are now giving their opinion.

A travel expert says freezing liquids to avoid security is not a good idea. It could result in a fine.

The expert says you cannot carry frozen items in your hand luggage.

Even if the smoothie is frozen, it is still a liquid.

The smoothie might melt at security and exceed the liquid limit. It could be thrown away.

Passengers are warned not to pack a popular snack or risk a big fine.

There are also problems with customs when flying back to the UK.

Some foods are not allowed in the UK, like dairy and seeds.

There are rules about bringing food back to the UK. You could be fined £5,000 if you break these rules. Meat, dairy, and fruit are not allowed. You should not freeze your smoothie for the flight home.

Açaí bowls have nuts and seeds, which are not allowed. You could pay a big fine if you take one on your flight home.