packed a box of wine in my carry on when i went through the Tampa port, also had a 12 pack of pop on top of my luggage. no problem with anything. you could if you are a beer drinker take an empty case of pop and fill it with beer, reseal and and take it on in the pop carton. looks like coke,. i will be going through San Juan in a week. will let you know the process there. let me know if anyone knows out there the process.