<<Disclaimer: Verify this information before applying it to your situation.>> Hi all, As promised, here is the response of the one company that responded to me so far. If you remember, I'm investigating about the GF status of rice vinegars. (rice vinegar is not distilled but brewed, and I have heard that some non GF mash could be added) I have the impression (just this, my impression) that rice vinegars made in USA could be more prone to be GF than the ones made in Asia. "Dear Mireille, Our Sushi Chef Rice Vinegar is gluten free. I cannot speak for other brands. Other products of ours that are gluten free include Sushi Vinegar, Mirin, Sesame Oil, Nori, Shiitake Mushrooms, Wasabi Ppwder, Pickled Ginger, Short Grain Rice, and sesame seeds. I have attached a product list for your consideration. Best regards, Alan Johnson *Please provide references to back up claims of a product being GF or not GF*