Archive for the ‘Experiments’ Category

Water Tasting Experiment

A group of students conducted a water tasting experiment during the Community Expo 2011-1. The experiment consisted on having volunteers taste different brands of bottled water and tap water with the goal of identifying tap water.  Before they drank from the different samples, participants were asked whether they drink more bottled water or more tap water.

There were a total of 90 participants

51% drink mainly bottled water

37% drink mainly tap water

12% drink equal amounts of bottled and tap water

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Out of the participants that mainly drink bottled water:

56% were not able to identify tap water

44% were able to identify tap water

 

Out of the participants that mainly drink tap water:

61% were not able to identify tap water

39% were able to identify tap water

 

Out of the participants that drink equal amount of bottled and tap water:

54% were unable to identify tap water

46% were able to identify tap water

 

58% were unable to identify tap water

42% were able to identify tap water

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29% were unable to identify tap water and indicated that they drink mainly bottled water

22% were unable to identify tap water and indicated that they drink mainly tap water

7% were unable to identify tap water and indicated that they drink equal amount of bottled and tap water

 

22% were able to identify tap water and indicated that they drink mainly bottled water

14% were able to identify tap water and indicated that they drink mainly tap water

5% were able to identify tap water and indicated that they drink equal amount of bottled and tap water

 

Conclusions:

Most people, 58%, were unable to identify tap water.  When comparing people who mainly drink bottled water and people who mainly drink tap water, there was only a 5% difference in terms of ability to identify tap water.  It seems that bottle drinkers are more likely to identify tap water.

A follow up study is required to see whether participants like the taste of tap water.  For instance, participants in a future test could be asked to rate the samples of water according to taste.  Also, we could try to get a bigger sample of participants.

Please feel welcome to leave a comment.

 

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