Tap water in Portugal is cheaper compared to bottled water. According to data from Selectra, released on Tuesday, a litre of tap water costs, on average, €0.0017, making it up to 99% cheaper than bottled water.

"This discrepancy in costs is notable, especially when we consider the average water consumption of a family throughout the year", explains the company in a statement.

Selectra recalls that, according to the Water and Waste Services Regulatory Authority (ERSAR), "the percentage of safe water in mainland Portugal is 98.96%, a value considered excellent".

"And best of all: it is a much more affordable alternative compared to bottled water".