I paid $4000 for an electrical ionizer. My daughter would never drink the electrical ionized water because she didn't like the taste. Could it have been the chemicals that their electrolysis enhancers that the electrical ionizer put into the water that she was reacting to? She loves the Cerra water taste and is finally drinking water. Since drinking the Cerra water she has noticed an overall improvement in her well being. I really like the convenience of the pitcher for traveling and it safety. Who would have guessed that a water pitcher has more safety certifications for clean water than any other water company out there. The plastic is BPA free and the German certification has guaranteed that that is absolutely no leaching. The electrical ionizer are all plastic and yet there is no BPA free for their water tank or hoses! I love Cerra water! It tastes like water from a mountain stream.