As a general rule forget about trying to carry on-board any beverage whatsoever. Anyway - who takes drinks on a plane? Every international flight departing Japan will keep you well tanked up. I have to remember to STOP drinking alcohol once I reach the Urals so I'll be sober enough to drive for three hours when I eventually reach Heathrow. Fortunately, transfers at Frankfurt have a very sobering effect - the extra security checks for UK-bound passengers prior to boarding leave no crevice unexplored!
BTW Flying next Monday and gawd don't the looks of resentment on my students' faces make me wish I wasn't. I've run out of interesting tidbits about how I need to practice speaking 'real English' for two weeks (yes of course I know that's a joke - UKlanders these days speak with all the refinement of a fart in a spacesuit). I'm now at the "...quit your job, forget about saving for your dream wedding – it'll never happen anyway, get your arse overseas and live life a little...don't worry...your keitai will still work." (Too much perhaps????)
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