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January 21st, 2023

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The Fourth Phase of Water

4th-phase-cover_new_grandeIs water simply H2O? Apparently not, according to Professor Gerald Pollack who is casting new light on age-old assumptions about the nature of water.

Pollack is raising awareness about an important ‘fourth phase’ of water which exists in addition to the three solid-liquid-vapour phases we have been taught to observe from childhood.

This fourth phase occurs between the solid and liquid phases. Pollack calls this charged phase the ‘exclusion zone’ (EZ for short). It has a more ordered and gel-like consistency and explains some of water’s most puzzling properties such as…

Free energy from water

Pollack explains  how water (combined with light) is a natural battery and source of free energy. Water’s exclusion zone creates charge separation and, consequently, lots of harvest-able electrical potential. This natural battery is recharged by light, including infrared light which is present even in the ‘dark’.

Water interacts with photons which supply energy just as plants absorb and convert light for metabolic processes. After all, plants are mostly water. Light interacts with water to create and store harvest-able energy, which is the ability to do work. The fourth phase of water, a missing link in our understanding of water, makes this possible.

Natural desalination & Filterless water filtration

Pollack maintains an active laboratory at the University of Washington in Seattle. Research into the properties of this fourth phase of water may enable energy-efficient and environmentally-friendly developments such as the natural filtering of water (without filters) and natural desalination of sea water using radiant energy from the sun.


Gerald Pollack is an award-winning University of Washington faculty member and the founding editor-in-chief of the scientific journal, WATER.

The Fourth Phase of Water: Beyond Solid, Liquid and Vapor is the title of his newly published book (2013).