Importantly, always check your airline's website or call to find the current official rules for what you can carry on a flight. These rules change periodically and vary depending on the country in which you are traveling.
Although this is subject to change, in the UK, the rules which disallowed liquids to be carried on to planes have been slightly relaxed. Now you may carry up to 100 ml containers of foodstuffs, foams, liquid cosmetics, pastes and gels and lotions. These must be fully visible in a plastic bag, which is no more than 20 cm or 8 inches across. An appropriate plastic bag will likely be available at the airport. Your liquid containers must all fit into a single bag and only one bag is allowed per person. Liquids (provided they meet safety requirements) can still be packed in the baggage that you check into the aircraft hold.
Although this is subject to change, in the UK, the rules which disallowed liquids to be carried on to planes have been slightly relaxed. Now you may carry up to 100 ml containers of foodstuffs, foams, liquid cosmetics, pastes and gels and lotions. These must be fully visible in a plastic bag, which is no more than 20 cm or 8 inches across. An appropriate plastic bag will likely be available at the airport. Your liquid containers must all fit into a single bag and only one bag is allowed per person. Liquids (provided they meet safety requirements) can still be packed in the baggage that you check into the aircraft hold.