Actually, water is a lot weirder than we give it credit for. It also contains a lot of things we seldom think about.
To start with, water is ionized, that is, it usually has minerals dissolved in it. Deionized water has had almost all of its mineral ions removed, such as cations like sodium, calcium, iron, and copper, and anions such as chloride and sulfate.
If you drink it, it goes right through you, and you will even lose some minerals just to get rid of it. Tastes bleh.
Degassed water, on the other hand, is an incredibly good solvent. The gases normally found in it actually prevent things from being dissolved in water. If you used it to clean with, you wouldn’t need soap or detergent. These dissolved gases also make it taste better.
Though “pure” water is typically pH 7.0, changing its pH can result in different affects as to its taste and and use in cooking. Chlorine used to sanitize results in slightly acidic water, and stores now regularly sell alkaline water for whatever reason. The pH can have a strong effect on yeast fermentation, which matters a lot to beer and bread.
The right kind of bacteria, even in purified water, may significantly improve its flavor. For example, even with water purification, significant amounts of nitrates may remain. But these harmless bacteria consume them and release harmless nitrogen gas.
Other good bacteria will compete with harmful bacteria, like E. coli, possibly even rending unsafe water safe.
The electrical properties of water can be enigmatic, but are interesting in the context of all its other peculiarities.
http://skullsinthestars.com/2011/05/27/water-has-properties-that-are-positively-electrifying/
I am familiar with Emoto’s work and I find it interesting that apparently nobody here seemed to do a search on him or his work. Am no fan of Miss Paltrow. Water is fascinating and enigmatic.