Originally Posted by
cordelli
You need to find out if you will be screened at the gate before getting on the plane for the US. If it is one of the flights they do the second security screenings at, you will not be allowed to bring it on board.
Unless things have changed recently, every US carrier I have departed from FRA had a gate screening far tougher than the main terminal screen downstairs. TSA tight, just with more polite and professional screeners. You will not get it on board.
The other problem is entering the US. Is the OP's destination the landing airport? If so, does it have an exit to the street after customs, or do the pax have to transit the sterile area like ATL? If OP has to go through TSA to get to the street, or if the OP is connecting, the TSA clerkpoint will confiscate for sure.
Bag each bottle in multiple 2 gallon ziplock freezer bags and bubble wrap and place in the middle of your
checked bag. 99% chance it will survive unbroken.
Theft is another matter.