...you can't do it anyway.
I had the most frustrating experience a brief while ago at a Japanese post office. I'm trying to send a box with two 500 ml. PET bottles of green tea Coca-cola to Hawaii. I put the bottles in a Ziploc bag. I bubble-wrapped the hell out of them so they are immobilized, and I dutifully put the proper customs tag on it with details of the contents.
When we offered the box over to the people at the counter in the post office, they read the tag (which honestly listed that there was Coke in it) and then started sucking air between their teeth and clucking amongst themselves. Once they got through with that, they kept looking at a chart on the wall which listed all the things you can't send like, oh, poison, toxic chemicals, etc. There was nothing on their wall chart which said you can't send Coke.
After we tried to tell the two hens who were frowning and acting like we were trying to mail a ticking bomb that it was just a few bottles of soda, they called over a MAN to handle it. After all, if a Japanese man tells you something, the sway of his testosterone-fueled masculine authority will make the barbarians at your gate stop quibbling with you and go away.
The man, who was just your usual scrawny Japanese dude, but I guess Japanese women think anyone with a penis gets respect, insisted that there was this horrible risk of the bottles exploding in transit because of the air pressure changes on the plane if the box is sent by airmail. We told him that they were in a plastic bag. Even if they exploded, the bag would catch any leaked soda. He essentially said that we couldn't send them by air because of this risk.
At any rate, we asked the man if there was a rule about not sending carbonated beverages. He said that there was no rule, but they essentially didn't want to do it. That means that there isn't a word on any book anywhere about not sending these things and it is not listed as a restricted item, but because he's imagined some problem which there has been no case of to date, he won't allow us to mail our package.
Now, folks, I try hard to be balanced about cultural differences, but this experience is where I've freaking HAD IT with the Japanese "case by case" crap and the way in which they "take responsibility". The truth of the matter is that much of the way Japan works is with people making decisions based on what helps them avoid responsibility for anything. Generally, that means being ridiculously timid so that they can't be held accountable if the most obscure and moderately troublesome (not catastrophic, not devastating, not even annoying) possibility happens to take place.
That "man" wasn't concerned with doing his job according to what the job allows or requires. He was only concerned with some extreme possibility where the bottles rupture *and* leak through the bag *and* this is actually a problem for anyone *and* they look at the post mark and trace it back to their particular post office and someone then calls them on the carpet for sending a parcel which contained items which weren't restricted in the first place.
This sort of thinking is exactly why Japan changes at a slower pace than a glacier. It's the reason their economy has been on a 20-year decline with no end in sight. It's why they have greater debt per capita than the United States. It's why their inept and corrupt politicians keep getting re-elected. It's why they have a tendency to embellish and polish what other people have success with rather than invent their own unique ideas. No one wants to take a damn risk of messing up and then having to take responsibility.
On the bright side, the people working at my local post office are now at no risk of having to commit seppuku in the unlikely event that the bottles of soda I'm trying to send rupture en route *and* leak out of their Ziploc bag *and* it ends up being a problem for someone. On the not so bright side, I can't help out someone who has been really helpful to me and who I really want to help.
I'm going to change the customs tag so it says something vague and try another post office tomorrow. I know other people send this stuff abroad all the time. I'm not only talking about J-List and whatnot, but I've heard of people who just send their friends bottles of Pepsi Cucumber or Pepsi White or whatnot. There must be a few postal workers out there whose testicles are big enough to take on the great risk of sending a couple of bottles of pop. :-p
Oh yeah, anyone who has a problem with my little rant. I advise you to keep your comments to yourself because I'm in no mood for fingers being waggled at me by people who haven't had to put up with the ridiculous crap I've had to for the last 20 years. There's reasonable judgment, and then there is abject bullshit. This my friends, came directly from the ass of a male bovine.