Hamburg Airport in Germany has now responded by installing four new drinking-water dispensers offering cooled water for free inside the security area.

Berlin - It's a regular air-traveller annoyance - passengers can only take a maximum of 100 millilitres of liquid through security with them, but once they get through the security checks, a glass of water at the bars is often very expensive.

Since it's important to stay hydrated when you're flying, that's an assault on either your health or your wallet.

The EU Commission has urged European airports to offer reasonably priced water after the security checks – for around 1 euro (about R15) per serving. But there is no legal obligation for them to do so.

Hamburg Airport in Germany has now responded by installing four new drinking-water dispensers offering cooled water for free inside the security area.

Two are near the gates where passengers wait to board, and two more are in the baggage-claim areas for those who arrive.