Ask Corn Allergy Girl: Water Filtration

The Question

I got a Berkey water filtration system and seem to be having trouble with the water. I saw on a post somewhere – and I thought it might be one of yours – that you should get the ceramic filters, not the black ones. I’m just wondering why. I’ve made two calls to Berkey. Both times they doubted me. The gal I talked to absolutely refused to believe there could be corn in, around, through or in any way associated with the black filter. I don’t even understand what would make the black filters a problem, but not the ceramic. Do you know anything about this?

– Darcy

[I’ve edited the question a bit to withhold some identifying information.]

A Little Background: There’s Corn In Water?

Yes, there is. Here’s the Hidden Corn entry on water. Like many other chemicals the additives and disinfectants in drinking water can be derived from corn (citric acid especially) or can be in a corn-based carrier to help them dissolve. Then, when it comes to water filtration systems, information is often proprietary so we don’t know for sure *what* is corny about it, we only know that the corn allergic react. My best guess is that the activated charcoal in some water filters could be from corn, or could have been “activated” using a corn based acid. Additionally filters that add minerals back in to the water will do so via corn-based carrier chemicals. *And*, I don’t have a reference for this, but there are reports of antimicrobial polymers such as antimicrobial toilet seats causing BIG contact reactions with corn allergics. The housing of the water filter could be made from an antimicrobial polymer, and that polymer would likely be corny.

Now the Answer

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