The Health Effects of Alkaline Ionized Water?

I came across alkaline ionized water as my aunts bought a system called Kangen Water from [Enagic Inc.](http://www.enagic.com/) The water produced by this system is claimed to contain smaller water clusters (4-6 molecules) compared to tap water with 10-12 molecules. Besides, the ORP (Oxidation Reduction Potential) of the water is negative (-250 to -350 mV), which the [company claimed](http://jldmkangen.webs.com/PDF/Benefits%20of%20Alkaline,%20Ionized%20Water.pdf) to battle ROS (Reactive Oxygen Species). Of course, the company also advertised the water as having other incredible properties such as [emulsifying grease](http://www.kangendemo.com/), thereby can be used to remove pesticides on fruits and vegetables.


So, let alone the validity of the claim on benefits, my questions are:


1. How can one produce negative-ORP water? Is it possible to do so with added minerals? (Just the only way I can think of, is there any other way?)
2. What chemical/physical process is happening in the [emulsification demo](http://www.kangendemo.com/)? Why can't tap water do so?


Please refrain from discrediting the company too quickly as I think I might have and please tell me if I formulated my question clearly enough because I acknowledge this is a fairly vague question.


