If you're avoiding it, it may be helpful to know (if you didn't already; in that case, for anyone else reading) that, at least in the US, manufactured citric ac

If you're avoiding it, it may be helpful to know (if you didn't already; in that case, for anyone else reading) that, at least in the US, manufactured citric acid is a frequent additive not stated in ingredient lists ("natural flavors", among other things), as well as a reactive agent in some non-perishables eg. soaps and detergents. I was bit by that last one several times before researching the chemistry of soapmaking and learning about it with tired aggravation.