A test report by the consumer magazine Öko-Test shows that not every medium mineral water can be drunk without hesitation. Five mineral waters received a "poor" rating, and one even received an "unsatisfactory" rating after the laboratory test.
The worst grade was given to the mineral water "Berg Quellen Medium" from branded drinks Schwollen. The price range of the 24 mineral waters rated "very good" varies greatly. The cheapest - and primarily regionally distributed - brands in the top list: Marius Mineral Spring.