<<Disclaimer: Verify this information before applying it to your situation.>> Hello Listers, I have read several comments recently regarding citric acid and was wondering what the potential contamination issue is with it. Because of the name, I assumed it was derived from citrus, is this mistaken. What is it, and where does it come from? Are there safe sources of citric acid (i.e. corn, potato, etc)? Thanks for any info you can offer:) Catherine in AZ