Good luck at the Hamburg, Germany airport then :D
The bigger joke is that the vending machines in an international airport only accept euro and no credit cards.
Maybe this changed since I have moved from hamburg to Stockholm 2 years ago. But the hamburg airport compared to Arlanda is a joke.
You say that like it's bad? Hamburg tap water was perfectly ok a few years ago when I was there. Has it changed?
Are you sure the taps in commercial restrooms would have more bacteria?
Some mouth to tap action at the fountains might even the odds abit too.
I could swear I saw a drinking fountain once, somewhere along that long corridor connecting the gates but I never found it again and, to this date, I've never drank from it. (I mostly fly Eurowings to other Schengen destinations.) If it really exists, I'm sure there is only one such station past security, or maybe one per airport wing.
And look, in a pinch I'm ready to drink tap water from the airport toilet faucets. I'm ready to entrust my life to that dice roll. But, as a matter of human dignity being inviolable and all that, I would much rather shell out money for an expensive bottle of water.