> I've never heard of fluoride causing a change in a fermented product. I've never done a comparison myself, but I've seen this mentioned many times as a cons

> I've never heard of fluoride causing a change in a fermented product. I've never done a comparison myself, but I've seen this mentioned many times as a consideration when fermenting foods. A cursory search indicates that floride can have detrimental effects in wine yeasts as well.