No significant difference between the two samples.
A=tap water (Vienna)
B=Grander water filled in bottles (1 Litre for 12.60 Euro)
Eder, E. (2002): Taste and price of Grander water. Unpubl. study, University of Vienna.
Grander water filled in bottles or tap water treated with Grander "technology" is pretended to taste "finer" or "smoother", in any case better. Usually, nobody would taste his tap water for "smoothness", would he? So you cannot exclude a strong psychological effect after having invested thousand Euro or more into a "water vitalisation device" and tasting your "new", "vitalized" tap water for the first time...
in the course of talks at people high schools and with friends and students, I performed blind taste experiments with botteled Grander water and Viennese tap water. It is crucial for such exepriments to avoid unconscious influences that neither test persons nor the test performer know which water is currently tested.
Results taste:
Test 1: Which water tastes better (A or B)?
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Test 2: Which water tastes better (C or D)?
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The background of test 2: A "water exhibition" (in 2000) showed two wells for tasting water, one of them with Grander "vitalised" water. Surprisingly, this water actually tasted better. After closer examination, it turned out that it was cooler than the water in the other well... A simple, but effective trick.
The price :
On May 6, 2003, one litre bottled Grander water
costed 12,60 Euro in a shop in Vienna's Alserbachstrasse.
Compare: On the same day, for the same money you could buy
36 litres best mineral water,
or receive 5.250 litres Viennese tap water from mountain springs. this is the average drinking water need of a human being in 5 years!
Miracle or usury? Something that expensive cannot be ineffective, can it?
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