<<Disclaimer: Verify this information before applying it to your situation.>> Hi, everyone, I had a question from a small company that's interested in making gluten-free vinegar: is there any chemical test available that they can use on their product to feel comfortable in labeling it gluten-free? Perhaps a food lab of some sort that does that kind of testing?? Or maybe a test they can purchase and run for themselves? They will be substituting apple cider vinegar (naturally gluten free) for the distilled vinegar (gluten containing) they currently use. Maybe their only alternative is to make sure that they thoroughly remove the distilled vinegar from their equipment before they prepare and bottle the gluten free product?? Thanks in advance, Nancy