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Storing Ionized Water: Which Container, Glass or Plastic?

Published by Alkaline Water Plus

I recently did a series of tests to determine …

Which Container is Best for Storing Ionized Water?

I often get this question from my water ionizer customers, and have been working on discovering the very best methods of storing ionized water for a while now. So far, I’ve discovered that leaving no gap of air inside the container makes a huge difference in the ability to store ionized water and retain the ORP [antioxidant value], which usually escapes in just a few hours of storage. Also, glass appears to be the best container for retaining the ORP and pH values of the ionized water the longest.

The three containers I used in this trial were: 1) a glass jar [the kind used for jamming], 2) a plastic, BPA free, jar with a pull-type top, and 3) a dark, plastic, BPA-free container with a flip-type spout.  The water ionizer I used was the Jupiter Athena water ionizer.

The videos are all posted here in order. Beginning/pouring note: I filled each container to the brim in attempts to have no air-gap in the bottle at all. The second container was impossible to do this completely because of the cap design. I tested them at different intervals and have posted the results, below, on a chart for your easy reference.


Ionized WaterFrom Athena Water Ionizer






2/19 After Pouring


2/20 17 Hours Later




2/20 After Pouring


2/20 2 Hours Later




Conclusions: The glass jar is best for storing ionized water, however if you’re drinking the water within a couple of hours, using a plastic, bpa-free, container filled to the brim is good too. The flip-top lid appears to be a bad design for retaining ORP. So avoid lids that have a way for gas to escape.

Cathleen Lograsso

Cathleen LoGrasso

My background is in physiology, teaching, nutrition and weight loss. I have raised 5 children who are all grown now. I have a masters degree in education and was a teacher/principal for 24 years. I created Alkaline Water Plus in 2009 to educate people about the benefits of ionized water.

The very best thing I have ever purchased is a WATER IONIZER, and I've been in perfect health ever since I started drinking ionized water 25 years ago! Understanding and knowing how to control and manage my own body's pH and antioxidant levels at the cellular level has made all the difference in the world in my life, my family's lives and in a countless number of my friends and associates over the years.

Cathie LoGrasso Owner, Alkaline Water Plus

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