You are allowed to bring liquids in containers of up to 100 milliliters (ml) each in your hand luggage on a plane. All these containers must fit into a single transparent, resealable plastic bag with a maximum capacity of 1 liter. Only one such bag is allowed per passenger. Liquids include items like aerosols, drinks, toothpaste, cosmetic creams, gels, and similar substances

. Exceptions to this rule include:

• Medicines and dietary supplements needed during the flight, which may exceed 100 ml if accompanied by a doctor's certificate.
• Baby food required for the flight, which does not need to be placed in the plastic bag.
• Liquids purchased after security in sealed bags with receipts.

Containers larger than 100 ml are not allowed in cabin baggage, even if partially filled, and must be placed in checked luggage instead

. This rule is consistent across the European Union and many other countries, including the United States (where the limit is 3.4 ounces, approximately 100 ml)

. In summary:

• Maximum container size: 100 ml each
• Total volume in one transparent resealable bag: 1 liter
• One bag per passenger
• Exceptions for medicines, baby food, and duty-free liquids purchased after security

This ensures compliance with international aviation security regulations.