Yes, you can take liquids in your hand luggage, but the specific rules in 2026 depend on the technology available at your departure airport. At many traditional airports, the 100ml rule still applies: all liquids, gels, and aerosols must be in containers of 100ml or less and fit into a single, transparent, one-liter resealable bag. However, a growing number of major hubs (particularly in the UK and Ireland, such as Heathrow, Gatwick, and Birmingham) have upgraded to advanced 3D CT scanners. At these modern checkpoints, the 100ml limit has been replaced with a much more generous 2-liter limit per container, and you no longer need to remove liquids or electronics from your bag. Items categorized as liquids include drinks, toiletries (like toothpaste and foundation), and semi-liquid foods (like honey or jam). Essential medications and baby food are typically exempt from the 100ml volume limit but may require additional screening. Always check the specific guidelines for your departure and transit airports, as "mixed" rules across different regions remain the most common cause of security delays for 10kg carry-on travelers.