DRINKING WATER IN LISBON
Tap water in Lisbon and elsewhere in Portugal is perfectly safe to drink. It may taste slightly different from the water you drink back home, but it's nothing to worry about -- it's merely because its mineral content is not what you're used to. However, bottled water is available everywhere, from tiny kiosks to all supermarkets.
When ordering water at a restaurant, you don't need to specify that you want it bottled, since they don't serve tap water like it is often done in other countries such as the United States.
The most common Portuguese water brands are "Luso," "Caramulo," and "Sete Fontes."
See the menu below to answer other common travel concerns.