Why does bottled water freeze quicker than tap water?

Question

Why does bottled water freeze quicker than tap water?

Answer 1

If you start out with equal quantities of bottled water and tap water at equal temperatures in equal sized containers in one compartment with equal temperature throughout, the two samples will freeze at the same rate.  There are no appreciable differences in the physical properties of water in various containers, and in fact most bottled water began as tap water.

Answer 2

this has been proven false awhile ago, it was something about the water evaporating in the sample that was hot.

Answer 3

It doesn't. It will only freeze faster if there are more particles (minerals, sugars, salts, etc.) in it than the tap water you're testing it against. Since tap water usually has more of these things in it, it will be the faster freezer, though probably not by much because of the small quantities (of dissolveed substances) found. The principle is called "freezing point depression" and I've included a link for you.

Answer 4

  It is filtered and likely has no minerals in it including salt.

Answer 5

actually bottled water is much harder to freeze because it has no impurities on it and water needs some impurities to change to steam or to freeze. that is the reason they seed clouds. they add salt to clouds because it is to clean to crystallize adding salt to it will do the trick.